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921-01-7

Basic Information
CAS No.: 921-01-7
Name: D-Cysteine
Article Data: 198
Cas Database
Molecular Structure:
Molecular Structure of 921-01-7 (D-Cysteine)
Formula: C3H7NO2S
Molecular Weight: 121.16
Synonyms: Cysteine,D- (8CI);(S)-Cysteine;(S)-2-Amino-3-mercaptopropionic acid;
EINECS: 213-062-0
Density: 1.335 g/cm3
Melting Point: ~230 °C
Boiling Point: 293.9 °C at 760 mmHg
Flash Point: 131.5 °C
Solubility: Soluble in water (partly).
Appearance: white crystals or crystalline powder
Hazard Symbols: HarmfulXn; IrritantXi
Risk Codes: 36/37/38-20/21/22
Safety: 26-36/37/39
Transport Information: N/A
PSA: 102.12000
LogP: 0.02840
Synthetic route
Conditions
ConditionsYield
With hydroxylamine hydrochloride83%
With hydroxylamine hydrochloride In methanol reflux, 120 min, ice bath, 60 min;82%
88271-26-5

(2S,4S)-2-(D-galacto-1,2,3,4,5-Pentahydroxypentyl)-4-thiazolidincarbonsaeure

921-01-7

D-cysteine

Conditions
ConditionsYield
With hydroxylamine hydrochloride In methanol for 2h; Heating;73%
Conditions
ConditionsYield
With hydroxylamine hydrochloride In methanol; water for 3.5h; Heating;60%
Conditions
ConditionsYield
beim selektiven Abbau durch Escherichia coli;
349-46-2

S,S-cystine

921-01-7

D-cysteine

Conditions
ConditionsYield
With hydrogenchloride; tin
3054-01-1, 5680-65-9, 16597-46-9, 23032-53-3

(D)-2-Amino-3-(benzylthio)propanoic acid

921-01-7

D-cysteine

Conditions
ConditionsYield
With ammonia; sodium
2998-83-6

(2R,2'R)-2-amino-4-(2'-amino-2'-carboxyethylsulfanyl)butanoic acid

921-01-7

D-cysteine

Conditions
ConditionsYield
Spaltung durch Leber-Extrakt;
52-90-4

L-Cysteine

921-01-7

D-cysteine

Conditions
ConditionsYield
With water; acetone Product distribution; 1.) acetic acid, reflux, 2.5 h; 2.) methanol, room temp, 30 min;
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    Product Name: D-Cysteine CAS: 921-01-7 MF: C3H7NO2S MW: 121.16 EINECS: 213-062-0 Mol File: 921-01-7.mol D-Cysteine Structure D-Cysteine Chemical Properties Melting point ~230 °C (dec.) Boiling point 293.9±35.0 &

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Specification

The CAS registry number of D-Cysteine is 921-01-7. Its EINECS registry number is 213-062-0. In addition, the molecular formula is C3H7NO2S and the molecular weight is 121.16. The IUPAC name is (2S)-2-amino-3-sulfanylpropanoic acid. What's more, it is a kind of white crystalline powder and should be stored in a cool and dry place.

Physical properties about D-Cysteine are: (1)ACD/LogP: 0.09; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 1; (5)ACD/KOC (pH 7.4): 1; (6)#H bond acceptors: 3; (7)#H bond donors: 3; (8)#Freely Rotating Bonds: 4; (9)Polar Surface Area: 102.12 Å2; (10)Index of Refraction: 1.55; (11)Molar Refractivity: 28.902 cm3; (12)Molar Volume: 90.783 cm3; (13)Polarizability: 11.458 ×10-24cm3; (14)Surface Tension: 58.975 dyne/cm; (15)Density: 1.335 g/cm3; (16)Flash Point: 131.536 °C; (17)Enthalpy of Vaporization: 58.69 kJ/mol; (18)Boiling Point: 293.883 °C at 760 mmHg.

When you are using this chemical, please be cautious about it as the following:
This chemical is harmful by inhalation, in contact with skin and if swallowed. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: C([C@H](C(=O)O)N)S
(2)Std.InChI: InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1
(3)Std.InChIKey: XUJNEKJLAYXESH-UWTATZPHSA-N