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L-Homocystine

L-Homocystine Structure
CAS No.
626-72-2
Chemical Name:
L-Homocystine
Synonyms
(2S,2'S)-4,4'-Disulfanediylbis(2-aMinobutanoic acid);H-HoCys-OH;(H-HCY-OH)2;(H-Hcy-OH)?;H-L-HCystine;(H-HOCYS-OH)2;H-L-HOCYSTINE;(H-Hcys-OH) 2;L-Homocystine;L-Homocystine
CBNumber:
CB5155903
Molecular Formula:
C8H16N2O4S2
Molecular Weight:
268.35
MOL File:
626-72-2.mol
Modify Date:
2024/7/2 8:55:11

L-Homocystine Properties

Melting point 281-284 °C (dec.)(lit.)
alpha 77 º (c=1% in 1N HCl)
Boiling point 507.6±50.0 °C(Predicted)
Density 1.443±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility H2O : 5 mg/mL (18.63 mM; ultrasonic and adjust pH to 3 with H2O)DMSO : 1 mg/mL (3.73 mM; ultrasonic and adjust pH to 5 with HCl)
form Powder
pka 1.90±0.10(Predicted)
color Off-white to light yellow
BRN 1728583
InChIKey ZTVZLYBCZNMWCF-WDSKDSINSA-N
CAS DataBase Reference 626-72-2(CAS DataBase Reference)
EPA Substance Registry System L-Homocystine (626-72-2)

SAFETY

Risk and Safety Statements

Safety Statements  22-24/25
WGK Germany  3
HS Code  29309090

L-Homocystine price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) H6010 L-Homocystine ≥98% (HPLC) 626-72-2 100MG ₹8421.85 2022-06-14 Buy
Sigma-Aldrich(India) H6010 L-Homocystine ≥98% (HPLC) 626-72-2 500MG ₹18803.03 2022-06-14 Buy
Sigma-Aldrich(India) H6010 L-Homocystine ≥98% (HPLC) 626-72-2 1G ₹32345.1 2022-06-14 Buy
Product number Packaging Price Buy
H6010 100MG ₹8421.85 Buy
H6010 500MG ₹18803.03 Buy
H6010 1G ₹32345.1 Buy

L-Homocystine Chemical Properties,Uses,Production

Chemical Properties

L-homocysteine is an aliphatic amino acid with the molecular formula (C8H16N2O4S2). It is a white powder with an acidic taste and is easily soluble in water. It has limited solubility in ethanol. L-homocysteine has a sulfhydryl group on its side chain, which allows it to form disulfide bonds with other L-homocysteine residues in proteins. This feature contributes to the stable three-dimensional structure of proteins. As a result, L-homocysteine finds extensive applications in industries such as pharmaceuticals, food, feed, and cosmetics.

Uses

Increased levels lead to hyperhomocysteinemia; a cardiovascular risk factor in prediction of coronary heart disease as well as being associated with congenital birth defects, pregnancy complications and cancer.

Synthesis

L-homoserine(626-72-2) is biosynthesized from L-aspartate, which is synthesized from oxaloacetate, a TCA cycle intermediate. Homoserine is activated through esterification to form the O-acetyl ester by the enzyme homoserine O-acetyltransferase. In certain organisms, including the yeast Saccharomyces cerevisiae and certain bacteria, hydrogen sulfide reacts with O-acetyl-L-homoserine, replacing the acetyl group and forming L-homocysteine.
L-homocysteine biosynthesis

Purification Methods

The acid (3g) is dissolved in freshly boiled H2O (30mL) under N2, cooled under N2 (all operations should be under N2), absolute EtOH (100mL) is added, the acid is filtered off, and a second crop is obtained by diluting the filtrate to 500mL with absolute EtOH, kept overnight in a refrigerator, filtered, washed with EtOH and dried in a vacuum. The D(R,R)-form has similar properties but is –ve in M HCl and +ve in H2O. [du Vigneaud & Patterson J Biol Chem 109 101 1935, du Vigneaud & Brown Biochemical Preparations 5 93, 95 1975, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2667-2670 1961, Beilstein 4 III 1643, 4 IV 3199, Koegel et al. J Am Chem Soc 77 5708 1955.]

L-Homocystine Preparation Products And Raw materials

Global( 244)Suppliers
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CLEARSYNTH LABS LTD. +91-22-45045900 Hyderabad, India 6351 58 Inquiry
A.J Chemicals 91-9810153283 New Delhi, India 6124 58 Inquiry
Pharmaffiliates Analytics and Synthetics P. Ltd +91-172-5066494 Haryana, India 6773 58 Inquiry
Pharma Affiliates 172-5066494 Haryana, India 6761 58 Inquiry
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Chongqing Chemdad Co., Ltd +86-023-6139-8061 +86-86-13650506873 China 39916 58 Inquiry
(2S,2'S)-2,2'-Diamino-(4,4'-dithiobisbutyric acid) 3,3'-(Dithiobismethylene)bisalanine 4,4'-Dithiobis[(2S)-2-aminobutanoic acid] 4,4'-Dithiobis[(S)-2-aminobutanoic acid] 4,4'-Dithiobis[(S)-2-aminobutyric acid] (2S,2'S)-4,4'-Dithiobis[2-aMinobutanoic Acid] [S-(R*,R*)]-4,4'-Dithiobis[2-aMinobutanoic Acid] L-Homocystine ,99% L-Homocystine,L-4,4′-Dithiobis(2-aminobutanoic acid) L-HOMOCYSTINE, >=98% (HPLC) (H-L-HomoCys-OH)2 L-Homocystine≥ 99% (Assay) H-HoCys-OH L-4,4'-Dithiobis(2-aminobutanoic acid) (H-HCY-OH)2 (H-HOCYS-OH)2 (H-HOMOCYS-OH)2 H-L-HOCYSTINE L-4,4'-DITHIO-BIS(2-AMINOBUTANOIC ACID) 4,4’-dithiobis[2-amino-,[s-(theta,theta)]-butanoicaci (H-Hcy-OH)? L-homocystine cell culture tested [S-(R*,R*)]-4,4'-dithiobis[2-aminobutyric] acid 2-amino-4-(3-amino-3-carboxy-propyl)disulfanyl-butanoic acid H-HoCys-OH (H-Hcys-OH) 2 L-Homocystine H-L-HCystine L-Homocystine USP/EP/BP Butanoic acid, 4,4'-dithiobis[2-amino-, (2S,2'S)- (2S)-2-amino-4-{[(3S)-3-amino-3-carboxypropyl]disulfanyl}butanoic acid (2S,2'S)-4,4'-Disulfanediylbis(2-aMinobutanoic acid) L Homocystine,Inhibitor,Endogenous Metabolite,LHomocystine,inhibit,L-Homocystine Vincamine Impurity 1( Vincamine EP Impurity A ) L-Homocystine 626-72-2 C8H16N2O4S2 Unnatural Amino Acid Derivatives Specialty Synthesis Peptide Synthesis Homo-Amino Acids Amines Intermediates & Fine Chemicals Pharmaceuticals Sulfur & Selenium Compounds Amino Acids