Immune System Disorder

Estriol (Standard) is the analytical standard of Estriol. This product is intended for research and analytical applications.

L-Histidine (Standard) is the analytical standard of L-Histidine. This product is intended for research and analytical applications. L-Histidine is an essential amino acid for infants. L-Histidine is an inhibitor of mitochondrial glutamine transport.

Sarcosine (Standard) is the analytical standard of Sarcosine. This product is intended for research and analytical applications. Sarcosine (N-Methylglycine), an endogenous amino acid, is a competitive glycine transporter type I (GlyT1) inhibitor and N-methyl-D-aspartate (NMDA) receptor co-agonist. Sarcosine increases the glycine concentration, resulting in an indirect potentiation of the NMDA receptor. Sarcosine is commonly used for the research of schizophrenia.

2'-Deoxyguanosine (Standard) is the analytical standard of 2'-Deoxyguanosine. This product is intended for research and analytical applications. 2’-Deoxyguanosine (Deoxyguanosine) is a purine nucleoside with a variety of biological activities. 2’-Deoxyguanosine can induce DNA division in mouse thymus cells. 2’-Deoxyguanosine is a potent cell division inhibitor in plant cells. In Vitro: 2'-Deoxyguanosine inhibits the clonal growth of HL-60 and K562 leukemia cells with IC₅₀ values of 50 and 80 μM, respectively.

Phosphorylethanolamine (Standard) is the analytical standard of Phosphorylethanolamine. This product is intended for research and analytical applications. Phosphorylethanolamine (Monoaminoethyl phosphate) is present in most animal tissues and is also present in various human extracranial tumors. Phosphorylethanolamine is considered as the intermediate product of phospholipid metabolism. Phosphorylethanolamine is essential for the formation and maintenance of the cell membrane.

Benzoic acid (Standard) is the analytical standard of Benzoic acid. This product is intended for research and analytical applications. Benzoic acid is an aromatic alcohol existing naturally in many plants and is a common additive to food, drinks, cosmetics and other products. It acts as preservatives through inhibiting both bacteria and fungi.

Vanillic acid (Standard) is the analytical standard of Vanillic acid. This product is intended for research and analytical applications. Vanillic acid is a flavoring agent found in edible plants and fruits, also found in Angelica sinensis. Vanillic acid inhibits NF-κB activation. Anti-inflammatory, antibacterial, and chemopreventive effects.

L-Carnitine (Standard) is the analytical standard of L-Carnitine. This product is intended for research and analytical applications. L-Carnitine ((R)-Carnitine), a highly polar, small zwitterion, is an essential co-factor for the mitochondrial β-oxidation pathway. L-Carnitine functions to transport long chain fatty acyl-CoAs into the mitochondria for degradation by β-oxidation. L-Carnitine is an antioxidant. L-Carnitine can ameliorate metabolic imbalances in many inborn errors of metabolism.

Azelaic acid (Standard) is the analytical standard of Azelaic acid. This product is intended for research and analytical applications.

(S)-Malic acid (Standard) is the analytical standard of (S)-Malic acid (HY-Y1069). This product is intended for research and analytical applications. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive.

Isovaleric acid (Standard) is the analytical standard of Isovaleric acid. This product is intended for research and analytical applications. Isovaleric acid is an oral active short-chain fatty acid that inhibits osteoclast differentiation by stimulating AMPK phosphorylation and promotes colonic smooth muscle relaxation by activating the cAMP/PKA pathway. Isovaleric acid can be used in research on skeletal diseases (such as osteoporosis) and intestinal disorders.

L-Homoserine (Standard) is the analytical standard of L-Homoserine (HY-W002292). This product is intended for research and analytical applications. L-Homoserine is a nonessential chiral amino acid and the precursor of L-Threonine (HY-N0658) and L-Methionine (HY-N0326). L-Homoserine wide applications in the fields of pharmaceutical, agricultural, cosmetic and fragrance industries.

2-Methylpentanedioic acid is a metabolite of succinic acid, a citric acid cycle intermediate.

L-Asparagine (Standard) is the analytical standard of L-Asparagine (HY-N0667). This product is intended for research and analytical applications. L-Asparagine is an essential amino acid for leukemic cells and a substrate for L-Asparaginase. L-Asparaginase is a potent anti-leukemic enzyme that promotes asparagine (Asn) and glutamine (Gln) depletion and inhibits protein biosynthesis in lymphoblasts. Removal of L-asparagine from plasma by L-Asparaginase results in inhibition of RNA and DNA synthesis and subsequent apoptosis. L-Asparaginase has cell-killing ability in vitro and in vivo, and selectively inhibits the growth of cancer cells with low asparagine synthetase (AASNS) expression. L-Asparagine can be used as a biomarker and sensor for the study of childhood acute lymphoblastic leukemia.

1-Methyladenosine (Standard) is the analytical standard of 1-Methyladenosine. This product is intended for research and analytical applications. 1-Methyladenosine is an RNA modification that can serve as a tumor marker, with elevated levels in the body associated with cancer development. Following 1-methyladenosine methylation, upregulation of PPARδ expression regulates cholesterol metabolism and activates Hedgehog signaling pathway, driving liver tumorigenesis. In Vitro:Compared to surrounding tumor tissues, 1-methyladenosine methylation in RNA is aberrantly elevated in hepatocellular carcinoma (HCC) cell lines and liver cancer stem cells (CSCs). Methylated 1-methyladenosine can promote cholesterol synthesis and activate the Hedgehog signaling pathway by enhancing the translation of PPARδ in liver CSCs, ultimately driving the self-renewal and tumorigenesis of liver cancer stem cells.

Maleic Acid (Standard) is the analytical standard of Maleic Acid. This product is intended for research and analytical applications. Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E. coli and L. monocytogenes. IC₅₀ & Target: GAD. In Vitro: The MICs of WT 10403S for the acids (e.g., Maleic Acid) are 34 mM, 25 mM, 31 mM and 30 mM which correspond to pH values prior to growth of 4.84, 5.14, 5.32 and 5.02 respectively. Of all compounds tested, Maleic Acid is the least inhibitory despite acting at a lower pH (4.84). The most acid resistant (10403S) and the weakest (EGD-e) strain are challenged with 8.6 mM and 4.3 mM of each organic acid at pH 3 and 3.3 respectively. On both strains, Maleic Acid is the most bactericidal.

2'-Deoxyuridine (Standard) is the analytical standard of 2'-Deoxyuridine. This product is intended for research and analytical applications. 2’-deoxyuridine is a brain-penetrant pyrimidines nucleotide that is associated with nervous system diseases. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. 2'-Deoxyuridine is a precursor in the synthesis of Edoxudine (HY-B1011) and also an analogue of 5-ethynyl-2'-deoxyuridine, EdU (HY-118411). 2’-deoxyuridine reduces microglial activation and improve oxidative stress damage by modulating glycolytic metabolism on the Aβ25-35-induced brain injury, which is promising for research of Alzheimer’s disease (AD). In Vitro:The interaction between the 2-deoxyuridine and the column increases the duration of retention of 2-deoxyuridine.
Gradient elution with sodium acetate buffer-ACN eluent on two ZIC-HILIC homemade columns separates 2-deoxyuridine in under 9 min.
In Vivo:2'-Deoxyuridine (34.42 ng/mL, gavage, 15 min) passes the blood-brain barrier (BBB) to enter the hippocampus of mice brain.
2'-Deoxyuridine (20 mg/kg, gavage, daily for 4 weeks) improves cognition and memory loss and attenuates the damage to the hippocampus in Aβ25-35-induced mice model.

Anserine (Standard) is the analytical standard of Anserine. This product is intended for research and analytical applications. Anserine, a methylated form of Carnosine, is an orally active, natural Histidine-containing dipeptide found in skeletal muscle of vertebrates. Anserine is not cleaved by serum carnosinase and act as biochemical buffers, chelators, antioxidants, and anti-glycation agents. Anserine improves memory functions in Alzheimer's disease (AD)-model mice[1][2].

D-Sorbitol (Standard) is the analytical standard of D-Sorbitol. This product is intended for research and analytical applications. D-Sorbitol (Sorbitol) is a six-carbon sugar alcohol and can used as a sugar substitute. D-Sorbitol can be used as a stabilizing excipient and/or isotonicity agent, sweetener, humectant, thickener and dietary supplement.

4-Hydroxyhippuric acid (Standard) is the analytical standard of 4-Hydroxyhippuric acid (HY-113158). This product is intended for research and analytical applications. 4-Hydroxyhippuric acid is a metabolite of polyphenols. 4-Hydroxyhippuric acid is generated via medium-chain acyl-CoA dehydrogenase (MCAD)-dependent β-oxidation of microbially-produced 3-(4-hydroxyphenyl)propionic acid, followed by host glycine conjugation. 4-Hydroxyhippuric acid can be simultaneously detected in urine as a biomarker of dietary polyphenol intake.