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D-Cystine

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D-Cystine Basic information

Product Name:
D-Cystine
Synonyms:
  • D(+)-3,3'-DITHIOBIS(2-AMINOPROPANOIC ACID)
  • D(+)-CYSTINE
  • D-CYSTINE
  • (H-D-CYS-OH)2
  • H-D-CYSTINE
  • (S,S)-3,3'-DITHIOBIS(2-AMINOPROPIONIC ACID)
  • H-D-(Cys)_2-OH~(+)-3,3-Dithiobis(2-aminopropionic acid)
  • D-CYSTINE CRYSTALLINE
CAS:
349-46-2
MF:
C6H12N2O4S2
MW:
240.3
EINECS:
206-486-2
Product Categories:
  • Amino Acids
  • API
Mol File:
349-46-2.mol
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D-Cystine Chemical Properties

Melting point:
265 °C (dec.) (lit.)
alpha 
214 º (c=1, 1 N HCl)
Boiling point:
468.2±45.0 °C(Predicted)
Density 
1.358 (estimate)
refractive index 
1.6000 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
Aqueous Acid (Slightly), Aqueous Base (Slightly)
form 
Fine Crystalline Powder
pka
1.70±0.10(Predicted)
color 
White
optical activity
[α]20/D +212°, c = 1 in 1 M HCl
Water Solubility 
0.057 g/L (25 ºC)
Merck 
14,2782
BRN 
1728093
InChIKey
LEVWYRKDKASIDU-QWWZWVQMSA-N
LogP
1.230 (est)
CAS DataBase Reference
349-46-2(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
36/37/38-22
Safety Statements 
22-24/25-37/39-26-36
WGK Germany 
3
HS Code 
29309013

MSDS

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D-Cystine Usage And Synthesis

Description

D-cystine is a thiol-containing non-essential amino acid that is oxidized to form CYSTINE.

Chemical Properties

White crystals

Uses

D-Cystine increases the rate of fertilization of mouse oocytes.

Definition

ChEBI: The D-enantiomer of cystine.

Biological Functions

D-Cystine functions as an antioxidant and protects tissues against radiation and pollution, slowing the aging process. It also aids protein synthesis. Cystine is abundant in many proteins of skeletal tissues and skin, and found in insulin and digestive enzymes chromotrypsinogen A, papain, and trypsinogen.

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