| Identification | More | [Name]
D-Cysteine | [CAS]
921-01-7 | [Synonyms]
BETA-MERCAPTOALANINE
D-CYS-OH
D-CYSTEINE
H-D-CYS-OH
RARECHEM AB PP 1441
(S)-2-AMINO-3-MERCAPTOPROPIONIC ACID
D-cysteine free base crystalline
D-Cysteinefreebase
(2S)-2-amino-3-sulfanyl-propanoic acid
D-Cysteine (9CI)
H-D-Cys-OH (D-Cysteine)
(S)-2-Amino-3-mercaptopropanoic acid | [EINECS(EC#)]
213-062-0 | [Molecular Formula]
C3H7NO2S | [MDL Number]
MFCD00066461 | [Molecular Weight]
121.16 | [MOL File]
921-01-7.mol |
| Chemical Properties | Back Directory | [Appearance]
White crystalline powder | [Melting point ]
~230 °C (dec.) | [Boiling point ]
293.9±35.0 °C(Predicted) | [density ]
1.334±0.06 g/cm3(Predicted) | [storage temp. ]
−20°C | [solubility ]
Aqueous Acid (Slightly), Water (Slightly) | [form ]
Crystalline Powder | [pka]
2.07±0.10(Predicted) | [color ]
White | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [optical activity]
[α]20/D 7.6±1.0°, c = 5% in 5 M HCl | [Water Solubility ]
Soluble in water (partly). | [Sensitive ]
Air Sensitive | [BRN ]
1721407 | [LogP]
0.230 (est) | [CAS DataBase Reference]
921-01-7(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
3
| [F ]
10-23 | [HS Code ]
29309090 |
| Hazard Information | Back Directory | [Chemical Properties]
White crystalline powder | [Uses]
D-Cysteine has been used in the functionalization of QDs for applications in photocatalysis.
It can also be used in the synthesis of:
- cysteine-based chiral carbon dots (CDs)
- D-luciferin and aminoluciferin analogs
| [Definition]
ChEBI: An optically active form of cysteine having D-configuration. | [Purification Methods]
Purify it by recrystallisation from H2O (free from metal ions) and dry it in a vacuum. It is soluble in H2O, EtOH, Me2CO, EtOAc, AcOH, *C6H6 and CS2. Acidic solutions can be stored under N2 for a few days without deterioration. [For synthesis and spectra see Greenstein & Winitz Chemistry of the Amino Acids (J. Wiley) Vol 3 p1879 1961, Beilstein 4 III 1618, 4 IV 3144.] |
|
|