aromatic ring

By Targets:	Bacterial (3) Biochemical Assay Reagents (7) Drug Derivative (1) Drug Intermediate (1) Drug Metabolite (1) Environmental Pollutants (2) Fluorescent Dye (2) Histone Methyltransferase (2) PKC (1) Prostaglandin Receptor (1) Proteasome (1) Reactive Oxygen Species (ROS) (1) Reference Standards (1)
By Research Areas:	Cancer (3) Endocrinology (1) Infection (3) Inflammation/Immunology (2) Metabolic Disease (2)

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-D1416

HMBR 1 Publications Verification	Fluorescent Dye	Others
HMBR is an analogue with an additional methyl group on the aromatic ring and is non-fluorescent. HMBR conjugated with Y-FAST emits yellow fluorescence under blue light excitation (Ex= 419 nm; Em= 525–539 nm). HMBR is non-toxic to zebrafish embryos. HMBR has high cell permeability .

HY-103609

Pyrene 1 Publications Verification Benzo[def]phenanthrene	Environmental Pollutants Biochemical Assay Reagents	Others
Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

HY-P2915

Protocatechuate 3,4-dioxygenase 1 Publications Verification	Biochemical Assay Reagents Bacterial	Infection
Protocatechuate 3,4-dioxygenase is a dioxygenase. Protocatechuate 3,4-dioxygenase belongs to the non-heme iron dioxygenase class. Protocatechuate 3,4-dioxygenase catalyzes the cleavage of the aromatic ring of 3,4-dihydroxybenzoate, attaching two atoms of molecular oxygen to the compound to generate β-carboxy-cis,cis-muconate. Protocatechuate 3,4-dioxygenase is a key enzyme in the β-ketoadipic acid pathway. It is found in marine bacteria associated with Roseobacter. Protocatechuate 3,4-dioxygenase can be isolated from Pseudomonas aeruginosa .

HY-W090294

Perylene Peri-dinaphthalene (purified by sublimation)	Environmental Pollutants Biochemical Assay Reagents	Others
Perylene, which is a polycyclic aromatic hydrocarbon composed of four linearly fused benzene rings, is commonly used as a pigment and dye in a variety of applications, including printing inks, plastics, and textiles. In addition, Perylene has potential uses in solar cells as photosensitizers and as fluorescent probes in biochemistry and materials science. Perylene's rigid planar structure endows it with unique electronic and optical properties, making it a versatile and important compound in many fields of chemistry and materials science.

HY-W053507

m-Tolylacetic acid 3-Methylbenzeneacetic acid	Drug Metabolite Drug Intermediate	Others
m-Tolylacetic acid (3-Methylbenzeneacetic acid) is a hydroaromatic dicarboxylic acids excreted in the urine as metabolite of tolueneacetic acid. m-Tolylacetic acid can be used for drug intermediate for synthesising more complex molecules .

HY-144881

(S)-HH2853	Histone Methyltransferase	Inflammation/Immunology Cancer
(S)-HH2853 (compound 200), a PYRIDINO five membered aromatic ring compound, is a potent EZH1/2 dual inhibitor with an IC₅₀ of <100 nM for EZH2_Y641F. (S)-HH2853 has the potential to be used in the research of anti-tumor or autoimmune diseases .

HY-129756

Thioacetanilide N-Phenylthioacetamide	Biochemical Assay Reagents	Metabolic Disease
Thioacetanilide (N-Phenylthioacetamide) is a sulfur-containing thioamide derivative of acetanilide. Thioacetanilide displays a solvent‑dependent Z/E isomeric distribution, preferring the E conformation in polar hydrogen‑bonding solvents and the Z conformation in halogenated solvents. Thioacetanilide serves as a substrate for metabolic desulfurization and aromatic hydroxylation. Thioacetanilide is mainly metabolized via desulfurization and 4‑hydroxylation of the aromatic ring in Rattus norvegicus, and the released sulfur integrates into the total body sulfur pool. Thioacetanilide is well absorbed in rats, and more than 90% of the dose is excreted in urine as conjugated metabolites after oral administration .

HY-W587874

Disperse orange 3	Fluorescent Dye	Others
Disperse Orange 3 is a monoazo dye characterized by a dye content of 90% along with dispersing agents and surfactants; it features two aromatic rings, one of which possesses an amino group while the other is modified with a nitro group, exhibiting a prominent absorption peak at 415 nm.

HY-121968

(Z)-α-Methylcinnamaldehyde	Biochemical Assay Reagents	Metabolic Disease
(Z)-α-Methylcinnamaldehyde is an organic compound that is characterized by its distinct aldehyde and aromatic ring structures. (Z)-α-Methylcinnamaldehyde is an impurity that can be found in a pharmaceutical drug used for diabetic neuropathy–Epalrestat.

HY-116679

17-trifluoromethylphenyl trinor Prostaglandin F2α 17-Trifluoromethylphenyl trinor PGF2α	Prostaglandin Receptor	Endocrinology
A number of 17-phenyl trinor prostaglandin F2α (17-phenyl trinor PGF2α) derivatives have been approved for glaucoma. Of these, the unsubstituted or meta-substituted aromatic derivatives are the most potent FP receptor agonists.4 17-trifluoromethylphenyl trinor PGF2α bears an aromatic ring which is reminiscent of the trifluoromethyl-phenoxy ring of travoprost ((+)-fluprostenol isopropyl ester). As an ocular hypotensive agent, it would be expected that 17-trifluoromethylphenyl trinor PGF2α would act very much like the free acid of travoprost. 17-phenyl trinor PGF2α is a potent luteolytic, with a potency equal to or greater than fluprostenol and cloprostenol.

HY-103609R

Pyrene (Standard) Benzo[def]phenanthrene (Standard)	Biochemical Assay Reagents Reference Standards	Others
Pyrene (Standard) is the analytical standard of Pyrene. This product is intended for research and analytical applications. Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

HY-155817

UNC7096	Histone Methyltransferase	Others
UNC7096 (compound 53) is a biotinylated affinity reagent. The phenyl ring of UNC7096 replaces the pyrimidine ring in UNC6934 (HY-145103) and introduces biotin at the para position of the phenyl ring, which has a high binding affinity to the NSD2-PWWP1 domain (K_d=46 nM). UNC7096 blocks the interaction between NSD2-PWWP1 and nucleosomal H3K36me2 by occupying the methyl-lysine binding pocket of NSD2-PWWP1. This binding is achieved by covalent binding through the formation of hydrogen bonds and a specific aromatic cage structure. UNC7096 can be used to capture proteins that interact with the NSD2-PWWP1 domain to further analyze the biological significance of these interactions .

HY-163770

Anticancer agent 233	Proteasome	Cancer
Anticancer agent 233 (compound 5g) is a 3,5-bis(arylmethylene)-4-piperidinone derivative with anticancer activity, with GI₅₀ of 0.25 and 0.23 μM for cervical cancer (HeLa) and colon cancer (HCT116) cell lines, respectively. The chlorine atom on the aromatic ring of Anticancer agent 233 interacts well with the catalytic site of 20S proteasome, inhibiting the activity of 20S proteasome to exert its anticancer effect .

HY-W114420

3-Methyl-L-tyrosine	PKC Drug Derivative	Cancer
3-Methyl-L-tyrosine is a derivative of L-Tyrosine (HY-N0473). Structurally, 3-Methyl-L-tyrosine features a methyl modification at the third position of the aromatic ring of L-Tyrosine. As a substrate for the protein tyrosine kinase Csk, 3-Methyl-L-tyrosine's relative catalytic efficiency (kcat/Km) is 38% of L-Tyrosine, indicating that the methyl modification impacts the processing efficiency of Gsk significantly. 3-Methyl-L-tyrosine helps to deepen the understanding of Gsk's molecular recognition mechanisms of its substrates, which is crucial for developing specific inhibitors targeting Gsk .

HY-N19662

12-Methoxy-cis-carnosic acid	Bacterial	Infection
12-Methoxy-cis-carnosic acid (Compound 5) is a methoxylated aromatic abietane diterpene with a cis A/B ring junction, found in the aerial parts of Rosmarinus officinalis. 12-Methoxy-cis-carnosic acid can be used for research on Methicillin (HY-121544)-resistant Staphylococcus aureus .

HY-N19254

Shepherdine	Reactive Oxygen Species (ROS)	Inflammation/Immunology
Shepherdine, a harmala-type indole and tetrahydro-β-carboline alkaloid, is an antioxidant. Shepherdine scavenges free radicals via single electron transfer from its indole ring, forming an indolyl cation or neutral radical, and may convert to aromatic β-carbolines during this process. Shepherdine can be used for research on antioxidant activity .

HY-N19426

Tetrapterol A	Others	Others
Tetrapterol A is an isoflavanone compound. Tetrapterol A can be isolated from the roots of Sophora tetraptera .

HY-P2915A

Protocatechuate 3,4-Dioxygenase, Bacteria	Biochemical Assay Reagents Bacterial	Infection
Protocatechuate 3,4-Dioxygenase, Bacteria is a dioxygenase. Protocatechuate 3,4-Dioxygenase, Bacteria belongs to the non-heme iron dioxygenase class. Protocatechuate 3,4-Dioxygenase, Bacteria catalyzes the cleavage of the aromatic ring of 3,4-dihydroxybenzoate, attaching two atoms of molecular oxygen to the compound to generate β-carboxy-cis,cis-muconate. Protocatechuate 3,4-Dioxygenase, Bacteria is a key enzyme in the β-ketoadipic acid pathway. Protocatechuate 3,4-Dioxygenase, Bacteria is found in marine bacteria associated with Roseobacter. Protocatechuate 3,4-Dioxygenase, Bacteria can be isolated from Pseudomonas aeruginosa .

Cat. No.	Product Name

HY-L0122V

Asinex CNS Macrocycles Library	1,122 compounds
Several CNS multi-parameter scoring approaches have been reported: CNS-MPO, CNS-MPO V.2, CNS-TEMPO, which suggesting an algorithm to predict CNS-ike properties of new chemical entities. We have applied these scoring algorithms to select macrocycles satisfying multiple cut-offs and structural desirability criteria. The resulting set consists of 1,122 macrocyclic compounds with CNS-MPO > 4, CNS-MPO.v2 > 4, and CNS-TEMPO < 4 for CNS-related drug discovery and research.

Asinex CNS Macrocycles Library

1,122 compounds

Several CNS multi-parameter scoring approaches have been reported: CNS-MPO, CNS-MPO V.2, CNS-TEMPO, which suggesting an algorithm to predict CNS-ike properties of new chemical entities. We have applied these scoring algorithms to select macrocycles satisfying multiple cut-offs and structural desirability criteria. The resulting set consists of 1,122 macrocyclic compounds with CNS-MPO > 4, CNS-MPO.v2 > 4, and CNS-TEMPO < 4 for CNS-related drug discovery and research.

HY-L0094V

Chinese National Compound Library	1,398,968 compounds
The Chinese National Compound Library (CNCL) composes 1.4 million compounds possessing diversified structures. Coupled with this library will be advanced sample handling, information management and quality control systems. Most compounds in the library are drug-like, conforming to “Lipinski’s Rule of Five”, such as MW < 500, logP < 5, Hydrogen Bond Donors < 5.

HY-L943

MCE‑18 Novelty drug‑like Library	37030 compounds
MCE-18 stands for Medicinal Chemistry Evolution 2018, which was first published in Journal of Medicinal Chemistry in 2019 for assessing molecular novelty and three-dimensional complexity. Developed based on Clarivate global pharmaceutical patent database, this descriptor was constructed via big-data analysis covering 28,161 patented lead compounds, 1,370 approved drugs and nearly 30,000 preclinical-to-phase III drug candidates from 23 top pharmaceutical companies worldwide between 1950 and 2018, followed by structural clustering and removal of redundant outdated scaffolds for data denoising. Its scoring system integrates five core structural features including aromatic ring (AR), aliphatic heterocycle (NAR), chiral center (CHIRAL), spiro atom (SPIRO), cyclic and acyclic sp³ carbon ratio together with a quadratic topological correction factor. Breaking the limitations of the single Fsp³ parameter, MCE-18 effectively distinguishes conventional flat aromatic scaffolds from modern 3D-enriched novel chemotypes, overcoming typical drawbacks of traditional compound libraries such as scaffold redundancy, low screening hit rates and poor compatibility with allosteric and PPI-related difficult targets. This library contains over 37,000 structurally diverse compounds with favorable overall drug-likeness, suitable for high-throughput screening against canonical targets including kinases, GPCRs and proteases as well as challenging allosteric and PPI targets. Compounds comply with the developmental trend of modern novel drug discovery, supporting routine primary screening as well as early hit identification of allosteric modulators and PPI inhibitors, serving as an efficient screening resource for early-stage innovative drug discovery.

MCE‑18 Novelty drug‑like Library

37030 compounds

MCE-18 stands for Medicinal Chemistry Evolution 2018, which was first published in Journal of Medicinal Chemistry in 2019 for assessing molecular novelty and three-dimensional complexity. Developed based on Clarivate global pharmaceutical patent database, this descriptor was constructed via big-data analysis covering 28,161 patented lead compounds, 1,370 approved drugs and nearly 30,000 preclinical-to-phase III drug candidates from 23 top pharmaceutical companies worldwide between 1950 and 2018, followed by structural clustering and removal of redundant outdated scaffolds for data denoising. Its scoring system integrates five core structural features including aromatic ring (AR), aliphatic heterocycle (NAR), chiral center (CHIRAL), spiro atom (SPIRO), cyclic and acyclic sp³ carbon ratio together with a quadratic topological correction factor. Breaking the limitations of the single Fsp³ parameter, MCE-18 effectively distinguishes conventional flat aromatic scaffolds from modern 3D-enriched novel chemotypes, overcoming typical drawbacks of traditional compound libraries such as scaffold redundancy, low screening hit rates and poor compatibility with allosteric and PPI-related difficult targets.

This library contains over 37,000 structurally diverse compounds with favorable overall drug-likeness, suitable for high-throughput screening against canonical targets including kinases, GPCRs and proteases as well as challenging allosteric and PPI targets. Compounds comply with the developmental trend of modern novel drug discovery, supporting routine primary screening as well as early hit identification of allosteric modulators and PPI inhibitors, serving as an efficient screening resource for early-stage innovative drug discovery.

HY-L928

GPCR Targeted Diversity Library	7,115 compounds
G protein-coupled receptors (GPCRs) are membrane proteins in humans and one of the most important targets in drug discovery. Approximately 35% of launched drugs are targeted GPCRs, making them a crucial class of targets in drug discovery. The orthosteric site of a GPCR is its endogenous ligand’s (such as neurotransmitters or hormones) binding site. This site plays a central role in signal transduction. Small molecules binding to this site typically contain a protonatable amino group, enabling the formation of salt bridges or hydrogen bonds with acidic residues in the binding pocket. In contrast, the allosteric site does not directly initiate signaling but modulates the signal intensity of the GPCR by altering or stabilizing the conformation of the orthosteric site. Small molecules binding to the allosteric site often contain multiple aromatic rings to occupy hydrophobic pockets and achieve their functional effects. MCE has collected over 7,115 reported bioactive molecules targeting GPCRs, covering Class A, B, and C GPCRs. These small molecules were subjected to AI representation to extract 2D and 3D features. Subsequently, we do screening by AI score based on similarity to identify molecules in diversity library highly similar to the reported bioactive molecules in both 2D and 3D, with a threshold greater than 0.7. Further screening based on cLogP was applied to select molecules with good lipophilicity, which facilitates the binding of small molecules to GPCRs. This diversity library can be widely applied to the discovery of compounds targeting GPCR proteins.

GPCR Targeted Diversity Library

7,115 compounds

G protein-coupled receptors (GPCRs) are membrane proteins in humans and one of the most important targets in drug discovery. Approximately 35% of launched drugs are targeted GPCRs, making them a crucial class of targets in drug discovery.

The orthosteric site of a GPCR is its endogenous ligand’s (such as neurotransmitters or hormones) binding site. This site plays a central role in signal transduction. Small molecules binding to this site typically contain a protonatable amino group, enabling the formation of salt bridges or hydrogen bonds with acidic residues in the binding pocket. In contrast, the allosteric site does not directly initiate signaling but modulates the signal intensity of the GPCR by altering or stabilizing the conformation of the orthosteric site. Small molecules binding to the allosteric site often contain multiple aromatic rings to occupy hydrophobic pockets and achieve their functional effects.

MCE has collected over 7,115 reported bioactive molecules targeting GPCRs, covering Class A, B, and C GPCRs. These small molecules were subjected to AI representation to extract 2D and 3D features. Subsequently, we do screening by AI score based on similarity to identify molecules in diversity library highly similar to the reported bioactive molecules in both 2D and 3D, with a threshold greater than 0.7. Further screening based on cLogP was applied to select molecules with good lipophilicity, which facilitates the binding of small molecules to GPCRs. This diversity library can be widely applied to the discovery of compounds targeting GPCR proteins.

Cat. No.	Product Name	Type

HY-D1416

HMBR 1 Publications Verification	Fluorescent Dye
HMBR is an analogue with an additional methyl group on the aromatic ring and is non-fluorescent. HMBR conjugated with Y-FAST emits yellow fluorescence under blue light excitation (Ex= 419 nm; Em= 525–539 nm). HMBR is non-toxic to zebrafish embryos. HMBR has high cell permeability .

HY-103609

Pyrene 1 Publications Verification Benzo[def]phenanthrene	Fluorescent Dye
Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

Pyrene

1 Publications Verification

Benzo[def]phenanthrene

Fluorescent Dye

Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

HY-103609R

Pyrene (Standard) Benzo[def]phenanthrene (Standard)	Fluorescent Dye
Pyrene (Standard) is the analytical standard of Pyrene. This product is intended for research and analytical applications. Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

Pyrene (Standard)

Benzo[def]phenanthrene (Standard)

Fluorescent Dye

Pyrene (Standard) is the analytical standard of Pyrene. This product is intended for research and analytical applications. Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.

Cat. No.	Product Name	Type

HY-W090294

Perylene Peri-dinaphthalene (purified by sublimation)	Biochemical Assay Reagents
Perylene, which is a polycyclic aromatic hydrocarbon composed of four linearly fused benzene rings, is commonly used as a pigment and dye in a variety of applications, including printing inks, plastics, and textiles. In addition, Perylene has potential uses in solar cells as photosensitizers and as fluorescent probes in biochemistry and materials science. Perylene's rigid planar structure endows it with unique electronic and optical properties, making it a versatile and important compound in many fields of chemistry and materials science.

Perylene

Peri-dinaphthalene (purified by sublimation)

Biochemical Assay Reagents

Perylene, which is a polycyclic aromatic hydrocarbon composed of four linearly fused benzene rings, is commonly used as a pigment and dye in a variety of applications, including printing inks, plastics, and textiles. In addition, Perylene has potential uses in solar cells as photosensitizers and as fluorescent probes in biochemistry and materials science. Perylene's rigid planar structure endows it with unique electronic and optical properties, making it a versatile and important compound in many fields of chemistry and materials science.

Cat. No.	Product Name	Target	Research Area

HY-P2788

Hyp-Phe-Phe	Peptides	Others
Hyp-Phe-Phe is a tripeptide that forms helical-like sheets via aromatic interactions of the Phe rings to comprise a cross helical architecture. Hyp-Phe-Phe possesses a high shear piezoelectricity and acts as piezoelectric material .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-W053507

m-Tolylacetic acid 3-Methylbenzeneacetic acid	Structural Classification Classification of Application Fields Ketones, Aldehydes, Acids Other Diseases Endogenous metabolite Disease Research Fields Source Classification	Drug Metabolite Drug Intermediate
m-Tolylacetic acid (3-Methylbenzeneacetic acid) is a hydroaromatic dicarboxylic acids excreted in the urine as metabolite of tolueneacetic acid. m-Tolylacetic acid can be used for drug intermediate for synthesising more complex molecules .

HY-N19662

12-Methoxy-cis-carnosic acid	Structural Classification Paramacrolobium coeruleum (Taub.) J.Léonard Ketones, Aldehydes, Acids Labiatae Plants Source Classification	Bacterial
12-Methoxy-cis-carnosic acid (Compound 5) is a methoxylated aromatic abietane diterpene with a cis A/B ring junction, found in the aerial parts of Rosmarinus officinalis. 12-Methoxy-cis-carnosic acid can be used for research on Methicillin (HY-121544)-resistant Staphylococcus aureus .

HY-N19254

Shepherdine	Structural Classification Alkaloids Elaeagnaceae Plants Shepherdia canadensis (L.) Nutt. Indole Alkaloids Source Classification	Reactive Oxygen Species (ROS)
Shepherdine, a harmala-type indole and tetrahydro-β-carboline alkaloid, is an antioxidant. Shepherdine scavenges free radicals via single electron transfer from its indole ring, forming an indolyl cation or neutral radical, and may convert to aromatic β-carbolines during this process. Shepherdine can be used for research on antioxidant activity .

HY-N19426

Tetrapterol A	Structural Classification Flavonoids Sophora tetraptera J. F. Mill. Leguminosae Isoflavanones Plants Source Classification	Others
Tetrapterol A is an isoflavanone compound. Tetrapterol A can be isolated from the roots of Sophora tetraptera .

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aromatic ring

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Screening Libraries

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