44925
DL-Homocysteine
analytical standard
Synonym(s):
2-Amino-4-mercaptobutyric acid
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About This Item
Linear Formula:
HSCH2CH2CH(NH2)COOH
CAS Number:
Molecular Weight:
135.18
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
207-222-9
Beilstein/REAXYS Number:
1721683
MDL number:
grade
analytical standard
Quality Level
assay
≥95% (T)
optical activity
[α]/D 0±1°, c = 1 in H2O
shelf life
limited shelf life, expiry date on the label
analyte chemical class(es)
amino acids, peptides, proteins
technique(s)
HPLC: suitable
color
white to off-white
mp
232-233 °C (lit.)
application(s)
food and beverages
format
neat
storage temp.
−20°C
SMILES string
NC(CCS)C(O)=O
InChI
1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)
InChI key
FFFHZYDWPBMWHY-UHFFFAOYSA-N
Application
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
DL-Homocysteine may be used as an analytical reference standard for the quantification of homocysteine in biological samples using different chromatography techniques.
Biochem/physiol Actions
Increased plasma homocysteine is a risk factor for coronary heart disease and carcinogenesis; may be a marker for tumor cell growth.
Analysis Note
identification (LS-MS): identity conforms
Disclaimer
store under argon
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Pre-column derivatization high-performance liquid chromatographic method for determination of cysteine, cysteinyl-glycine, homocysteine and glutathione in plasma and cell extracts
Katrusiak.EA, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 758(2), 207-212 (2001)
Joshua A Dubland et al.
Journal of mass spectrometry and advances in the clinical lab, 20, 1-10 (2021-11-26)
Inborn errors of propionate, cobalamin and methionine metabolism are targets for Newborn Screening (NBS) in most programs world-wide, and are primarily screened by analyzing for propionyl carnitine (C3) and methionine in dried blood spot (DBS) cards using tandem mass spectrometry
Ghulam Mohammad et al.
International journal of molecular sciences, 21(5) (2020-03-11)
High homocysteine is routinely observed in diabetic patients, and this non-protein amino acid is considered as an independent risk factor for diabetic retinopathy. Homocysteine biosynthesis from methionine forms S-adenosyl methionine (SAM), which is a major methyl donor critical in DNA