MM cell

Natural products are small-molecule compounds produced in nature, derived from animals, plants, and microorganisms, including both primary and secondary metabolites. With their structural diversity and favorable biological activities, natural products have long been an important source for drug discovery. Traditional natural product research has often focused on isolating single active components, whereas metabolomics emphasizes a holistic approach—comprehensively detecting all metabolites in a sample and systematically capturing both known and unknown constituents. Consequently, mass spectrometry‑based metabolomics databases have become a key technological support for screening known components and identifying unknown compounds from natural sources.

MCE Mass Spectrometry Natural Product Library contains 4,412 natural products, covering multiple structural classes, including sugars and glycosides, phenylpropanoids, quinones, flavonoids, terpenoids, etc. All compounds have undergone rigorous quality control by LC/MS and other analytical methods, and can serve as high‑purity reference standards for metabolite identification.

An emerging drug design method is based on the secondary binding site effect, where small molecule drugs are designed to bind to secondary binding sites on target biomolecules rather than primary orthomorphic sites. Successful potential drugs (known as allosteric modulators) will be able to bind to allosteric sites and remotely alter (or modify) the conformation of the main orthosteric binding sites of biological targets. Allosteric modulators (AMs) are ligands of proteins that act through binding sites different from natural (orthosteric) ligand sites. AMs are relatively small, more lipophilic, and more rigid compounds. The binding efficacy of AMs with their targets is often slightly lower. AMs are divided into positive AMs (PAMs) and negative AMs (NAMs). AMs are ideal drug targets because they can fine-tune receptor activity while preserving the spatial and temporal signal transduction characteristics of endogenous ligands, resulting in fewer targeted side effects, improved subtype selectivity, and better promotion of biased signal transduction than normal ligands.

MCE designs a unique collection of 258 small allosteric modulators. It is a good tool to be used for research on metabolize, cancer and other diseases.

Phenolic compounds are usually referred to as a diverse group of naturally occurring compounds with multiple medical properties, such as antioxidants, antimicrobial properties. Those compounds are commonly found in food and plants. They have high synthetic, medicinal and industrial values. Polyphenols are compounds with multiple phenolic functionalities. Naturally occurring polyphenols are known to have biological activities for use as drugs, for example, in diseases like AIDS, heart ailments, ulcer formation, bacterial infection, mutagenesis and neural disorders.

MCE offers a unique collection of 1,299 natural phenol compounds which is a useful tool for drug discovery as an important source of lead compounds.

In this era of rapid advancement in gene-editing technology, the CRISPR-Cas system, with its powerful programmability, is leading a transformation in life sciences research. It enables efficient and precise targeted modification of an organism's genome, providing a robust tool for studying gene function, treating genetic diseases, and improving crop varieties. However, bottlenecks such as insufficient editing efficiency, low homologous directed repair efficiency, and potential off-target risks remain major challenges in achieving precise genetic modifications and developing gene therapies.

To overcome these limitations, the MCE High-Efficiency Gene Editing Compound Library systematically includes 761 small molecules that are known or have the potential to enhance gene-editing efficiency. These compounds work by targeting and modulating the DNA damage repair network, mechanistically inhibiting non-homologous end joining, promoting homologous directed repair, or regulating chromatin states and cellular responses, thereby significantly optimizing editing outcomes. This library is suitable for developing "CRISPR-small molecule" combination therapy strategies, improving gene-editing efficiency, and providing a powerful tool for in-depth research into the mechanisms of DNA damage repair in gene editing.

GABA receptors are a class of receptors that respond to the neurotransmitter gamma-aminobutyric acid (GABA), the chief inhibitory neurotransmitter in the vertebrate central nervous system. There are two classes of GABA receptors: GABAA and GABAB. GABAA receptors are ligand-gated ion channels (also known as ionotropic receptors), whereas GABAB receptors are G protein-coupled receptors (also known asmetabotropic receptors). GABA receptors are significant drug targets in the treatment of neuropsychiatric disorders such as epilepsy, insomnia, and anxiety, as well as in anesthesia in surgical operations.

MCE offers a unique collection of 206 GABA receptors inhibitors and activators, which is an efficient tool for neuropsychiatric disorders drugs discovery.

Cancer is the second leading cause of death worldwide and a serious threat to human health. Multiple treatments have been developed for cancer treatment, but new anti-cancer drugs still need to be developed urgently. Approved drugs, have well-characterized bioactivities, safety and bioavailability properties, will dramatically accelerate drug development.

MCE offers a unique collection of 1,540 approved drugs with anti-cancer activity, which can be used for discovery of new anti-cancer drugs or as positive compounds used for anti-cancer research.

Heterocyclic compounds are cyclic organic compounds which contain at least one hetero atom, the most common heteroatoms are nitrogen, oxygen ,and sulfur. Heterocycles are common in biology, featuring a wide range of structures from enzyme co-factors to amino acids and proteins. On the one hand, heterocycles are common structural units in approved drugs and in medicinal chemistry targets in the drug discovery process. In addition, heterocycles have been found as a key structure in medical chemistry and also they are frequently found in large percent of biomolecules such as vitamins, natural products ,and biologically active compounds including antifungal, anti-inflammatory, antibacterial, antioxidant, antiallergic, anti-HIV, antidiabetic, anticancer activity.

MCE offers a unique collection of 6,553 heterocyclic compounds which can be used for drug discovery for high throughput screening (HTS) and high content screening (HCS). MCE heterocyclic compound library is critical for drug discovery and development.

Drug repurposing (also called drug repositioning, reprofiling, or re‑tasking) offers various advantages over developing an entirely new drug for a given indication, for example, lower risk of failure, less investment, and shorter development timelines. But drug repositioning projects are also subject to several risks, including regulatory and intellectual property issues. So the off-patent drugs are optimal for repositioning because of their immediate availability for clinical studies, with high feasibility and relatively low risk.

MCE carefully prepared a unique collection of 2,921 off-patent drugs, which is a good choice for drug repurposing.

Non-steroidal anti-inflammatory drugs (NSAIDs) are members of a therapeutic drug class with potent anti-inflammatory, analgesic and antipyretic activity, and are among the most widely used drugs worldwide. The most prominent NSAIDs are aspirin, ibuprofen, and naproxen.

The main mechanism of action of NSAIDs is the inhibition of the enzyme cyclooxygenase (COX), based on which NSAIDs can be classified into two types: non-selective and COX-2 selective. Most NSAIDs are non-selective and inhibit both COX-1 and COX-2 activity.

MCE offers a unique collection of 635 non-steroidal compounds with identified anti-inflammatory activity. MCE non-steroidal anti-inflammatory library is a useful tool for the study of anti-inflammatory drugs and pharmacology.

Human metabolism is an integral part of cellular function that reflects individual differences in health, disease, diet, and lifestyle. Many health conditions such as obesity, diabetes, hypertension, heart disease, and cancer are associated with abnormal metabolic states. In the pathological state of the human body, metabolic pathways are significantly altered, resulting in aberrant levels of intermediates or end-products that can be viewed as potential diagnostic biomarkers or even therapeutic targets. Therefore, detection, identification and quantification of human metabolites are very important for drug metabolism research in drug development.

MCE offers a unique collection of 6,767 human metabolites, including endogenous metabolites and exogenous metabolites, covering multiple structure types, such as lipids, amino acids, nucleic acids, carbohydrates, organic acids, biogenic amines, vitamins,. MCE Human Metabolites Library is a helpful tool for studying the relationship between diseases and metabolism.

Dopamine receptor (DAR), widely distributed in the brain, plays a key role in regulating motor function, motivation, driving force and cognition. The role of DA is mediated by D1-type (D1, D5) and D2-type receptors (D2S, D2L, D3, D4), which are distributed in presynaptic, postsynaptic and extrasynaptic, projection neurons and interneurons. Each receptor has a different function. D1 and D5 receptors couple with G stimulation sites and activate Adenylyl cyclase. The activation of Adenylyl cyclase leads to the production of the second messenger cAMP, which leads to the production of protein kinase A (PKA), which leads to further transcription in the nucleus. D2 to D4 receptors are coupled to G inhibitory sites to inhibit adenylyl cyclase and activate potassium Ion channel. These receptors utilize phosphorylation cascades or direct membrane interactions to affect the functions of voltage-gated and neurotransmitter-gated channels, cytoplasmic enzymes, and transcription factors. Dopamine receptor plays an important role in daily life.

MCE designs a unique collection of 282 small molecules related to dopamine receptor. It is a good tool for screening drugs from nervous system disease.

New drug development is a time-consuming and high-cost process. Drug repurposing (also called drug repositioning, reprofiling or re‑tasking) offers various advantages over developing an entirely new drug for a given indication. First, the risk of failure is lower. Second, the time frame for drug development can be reduced. Third, less investment is needed. Approved and clinical drugs, especially after phase I drugs, have identified bioactivities, good pharmacokinetic characteristics and safety, which are suitable for drug repurposing.

MCE Drug Repurposing Compound Library plus contains 6,142 approved and passed phase I clinical drugs, which have been completed extensive preclinical and clinical studies and have well-characterized bioactivities, safety and bioavailability properties.

MCE Drug Repurposing Compound Library plus, with more powerful screening capability, further complement MCE Drug Repurposing Compound Library (HY-L035) by adding some compounds with low solubility or stability (Part B) to this library. All those supplementary compounds are supplied in powder form.

Natural products are an attractive source with varied structures that exhibit potent biological activities, and desirable pharmacological profiles. The core scaffold of a natural product can also provide a biologically validated framework upon which to display diverse functional groups. Inspired by bioactive natural products, natural product-like compounds, occupying the same chemical space, are ideally suited to explore and to facilitate understanding of biological pathways.

MCE provides a unique collection of 15,445 natural product-like compounds that are structurally like Steroids, Tannins, Flavonoids, Quinones, Isoquinolines, etc. This library is an important source of lead compounds for drug discovery.

New drug development is a time-consuming and high-cost process. Drug repurposing (also called drug repositioning, reprofiling or re‑tasking) offers various advantages over developing an entirely new drug for a given indication. First, the risk of failure is lower. Second, the time frame for drug development can be reduced. Third, less investment is needed. Approved and clinical drugs, especially after phase I drugs, have identified bioactivities, good pharmacokinetic characteristics and safety which are suitable for drug repurposing.

MCE Drug Repurposing Compound Library contains 5,148 approved drugs and passed phase Ⅰclinical drugs, which have been completed extensive preclinical and clinical studies and have well-characterized bioactivities, safety and bioavailability properties.

MCE EMA-Approved Drug Library consists of 728 EMA-approved drugs with high pharmacological diversity. All drugs in this library have been completed extensive preclinical and clinical studies and have well-characterized bioactivities, safety and bioavailability properties. MCE EMA-Approved Drug Library is a useful tool for drug repurposing which could dramatically accelerate drug development.

5-HT receptors, also called Serotonin receptors, are a group of G protein-coupled receptors (GPCRs) and ligand-gated ion channels (LGICs) found in the central and peripheral nervous systems. These receptors are now classified into seven families, 5-HT1–7, comprising a total of 14 structurally and pharmacologically distinct mammalian 5-HT receptor subtypes. The 5-HT receptors influence various biological and neurological processes such as aggression, anxiety, appetite, cognition, learning, memory, mood, nausea, sleep, andthermoregulation. The serotonin receptors are the target of a variety of pharmaceutical drugs, including many antidepressants, antipsychotics, anorectics, antiemetics, gastroprokinetic agents, antimigraine agents, hallucinogens, and entactogens.

MCE 5-HT Receptor Compound Library consists of 430 5-HT receptor inhibitors and activators, which can be used for neuropsychiatric disorders drugs discovery.

Heat-clearing and detoxification is a specific treatment method in the research of traditional Chinese medicine (TCM), which is clinically used to treat infectious diseases with remarkable effect. Over the past decades, the research of heat-clearing and detoxification treatment has been one of the most active fields of combining traditional Chinese and western medicines, and has made remarkable achievements. Nowadays, the application field of heat-clearing and detoxification traditional Chinese medicine is not only limited to antibacterial and antiviral, but also has made progress in the research fields of anti-inflammatory reaction, anti-endotoxin, anti-peroxidative damage, anti-inflammatory cytokines, enhancement of immune function, protection of cellular organelles, and maintenance of calcium homeostasis. In addition to this, clearing heat and removing toxins has also made significant research progress in non-infectious diseases, for example, in tumors, cardiovascular diseases, renal diseases, blood diseases, geriatrics, and diabetes, all of which have shown good curative effect.

MCE can supply 1,282 monomer component from more than a hundred sources of heat-clearing and detoxification TCM, which can be used in TCM studies, drug development and mechanism-based studies.

From target identification to clinical research, traditional drug discovery and development is a time-consuming and costly process, which also bears high risk. Compared with traditional drug discovery, drug repositioning or repurposing, also known as old drugs for new uses can greatly shorten the development cycle and reduce development cost, which has become a new trend of drug development. After undergoing clinical trials, approved drugs have identified bioactivities, good pharmacokinetic characteristics and safety, which can greatly improve the success rate of drug discovery. A number of successes have been achieved, such as metformin for type 2 diabetes and thalidomide for leprosy and multiple myeloma, etc.

MCE provides a unique collection of 1,534 China NMPA (National Medical Products Administration) approved compounds, which have undergone extensive preclinical and clinical studies and have well-characterized bioactivities, safety and bioavailability properties. MCE NMPA-Approved Drug Library is a good tool for drug repurposing which could dramatically accelerate drug development.

Mechanoreceptors convert different stimuli from the outside into electrical signals, enabling us to quickly respond to our environment. Mechanoreceptors are distributed throughout the body, including in the skin, tendons, muscles, joint capsules and viscera. In addition to the channels of TRP and Piezo mentioned in the Nobel Prize, there are also targets such as KCNK, ENaC and ASIC2, which play an important role in the environment perception and homeostasis of living organisms.

MCE offers a unique collection of 391 compounds related to mechanoreceptors, which targeting different mechanoreceptors, such as TRP, Piezo, KCNK, ENaC, etc. MCE mechanoreceptors compound library is a powerful tool for studying mechanoreceptors and life perception.

Liver cancer is one of the leading malignancies which occupies the second position in cancer deaths worldwide, becoming serious threat to human health. Hepatocellular carcinoma (HCC), also known as hepatoma is the most common type accounting for approximately 90% of all liver cancers.

Current evidence indicates that during hepatocarcinogenesis, two main pathogenic mechanisms prevail: (1) cirrhosis associated with hepatic regeneration after tissue damage caused by hepatitis infection, toxins or metabolic influences, and (2) mutations occurring in single or multiple oncogenes or tumor suppressor genes. Both mechanisms have been linked with alterations in several important cellular signaling pathways. These include the RAF/MEK/ERK pathway, PI3K/AKT/mTOR pathway, WNT/b-catenin pathway, insulin-like growth factor pathway, c-MET/HGFR pathway , etc.

MCE offers a unique collection of 3,003 compounds with identified and potential anti-liver cancer activity. MCE anti-liver cancer compound library is a useful tool for anti-liver cancer drugs screening and other related research.