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Merck

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:
Technical Service
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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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Rapid measurement of total plasma homocysteine by HPLC
Frick B, et al.
Clinica Chimica Acta; International Journal of Clinical Chemistry, 331(1-2), 19-23 (2003)
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
James Ampadu et al.
International journal of cardiology, 178, 12-23 (2014-12-03)
It has been estimated that 5.1million Americans suffer from heart failure. Cognitive impairment has been described as a consequence of heart failure in numerous studies spanning the last three decades. This systematic review helps differentiate "cognitive impairment" into mild cognitive