DL-Homocystine Chemical Properties

Melting point:

≥300 °C

alpha 

[α]D20 0±0.5゜(c=2,1mol/l HCl)

Boiling point:

507.6±50.0 °C(Predicted)

Density 

1.4269 (rough estimate)

refractive index 

1.6300 (estimate)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

Aqueous Acid (Slightly). Aqueous Base (Slightly)

form 

powder to crystal

pka

1.90±0.10(Predicted)

color 

White to Light yellow

Water Solubility 

0.2g/L(25 ºC)

Merck 

14,4735

BRN 

1728581

Stability:

Stable. Incompatible with strong oxidizing agents.

CAS DataBase Reference

870-93-9(CAS DataBase Reference)

EPA Substance Registry System

Butanoic acid, 4,4'-dithiobis[2-amino-, (2R,2'R)-rel- (870-93-9)

Safety Information

WGK Germany 

3

HS Code 

2930.90.9250

MSDS

• Language:English Provider:SigmaAldrich

DL-Homocystine Usage And Synthesis

Chemical Properties

white to slightly beige solid

Uses

DL-Homocystine is used in the synthesis of potential antitumor agents through inhibition of L-asparagine. There is growing clinical evidence that elevated homocysteine levels are associated with an increased risk of venous and arterial thrombosis.

Definition

ChEBI: Homocystine is an organic disulfide obtained by oxidative dimerisation of homocysteine. It has a role as a human metabolite. It is a tautomer of a homocystine zwitterion.

Purification Methods

dl-Homocystine crystallises in platelets from water with 1H2O and m 258-260o(dec), all operations should be carried out under N2. [Sudo J Chem Soc Jpn (Pure Chem Sect) 79 81, 86, 87 1958, Beilstein 4 IV 3199.]

DL-Homocystine(870-93-9)Related Product Information

• Dimethyl disulfide
• DL-Homocysteine
• DL-Cystine
• L-Cysteine
• DL-2-AMINOBUTYRIC ACID
• L-Homocystine
• DL-Malic acid
• 4-(4-Aminophenyl)butyric acid
• Cyproterone acetate
• DL-3-Aminobutyric acid
• L(+)-2-Aminobutyric acid
• DL-2-Aminobutyric acid
• N-Acetyl-L-cysteine
• D-2-Aminobutyric acid
• METHYL 4-(4-AMINOPHENYL)BUTANOATE
• 4-Aminobutyric acid
• DL-Isoleucine
• DL-Glutamic acid