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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:
454-29-5
Molecular Weight:
135.18
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329756565
EC Number:
207-222-9
Beilstein/REAXYS Number:
1721683
MDL number:
MFCD00004898

Key Documents

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InChI key

FFFHZYDWPBMWHY-UHFFFAOYSA-N

InChI

1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)

SMILES string

NC(CCS)C(O)=O

grade

analytical standard

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

Quality Level

100

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Application

DL-Homocysteine may be used as an analytical reference standard for the quantification of homocysteine in biological samples using different chromatography techniques.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

44925-VAR: + 44925-25MG: + 44925-BULK: + 44925-10MG:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP2079
BCCL3998
BCCJ5130
BCCG7235
BCCG4457

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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
T Murto et al.
Reproductive biomedicine online, 28(6), 766-772 (2014-04-22)
Folic acid supplements are commonly used by infertile women which leads to a positive folate status. However, the effect of folic acid supplements on pregnancy outcome in women with unexplained infertility has not been well investigated. This study evaluated folic
Silvia Hoirisch-Clapauch et al.
Schizophrenia research, 159(1), 118-123 (2014-09-11)
Clot buster tissue plasminogen activator (tPA) and its end-product plasmin play a well-defined role in neurochemistry. They mediate a number of events that culminate in tolerance against excitotoxicity, hippocampal neurogenesis, synaptic remodeling, neuronal plasticity, cognitive and emotional processing. Abnormalities in
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
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