| Identification | More | [Name]
D-Cystine | [CAS]
349-46-2 | [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
(2S)-2-Amino-3-[(2S)-2-amino-3-hydroxy-3-oxopropyl]disulfanylpropanoic acid
(S)-Cystine | [EINECS(EC#)]
206-486-2 | [Molecular Formula]
C6H12N2O4S2 | [MDL Number]
MFCD00002610 | [Molecular Weight]
240.3 | [MOL File]
349-46-2.mol |
| Chemical Properties | Back Directory | [Appearance]
White crystals | [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. ]
Store at RT. | [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) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed. | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HS Code ]
29309010 |
| Hazard Information | Back Directory | [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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