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D-Cysteine

D-Cysteine structure

CAS No:
921-01-7
Formula:
C3H7NO2S
Chemical Name:
D-Cysteine
Synonyms:
D-Cysteine;Cysteine,D-;(S)-Cysteine;(S)-2-Amino-3-mercaptopropanoic acid;18: PN: CN107114752 PAGE: 2 claimed sequence;(2S)-2-Amino-3-sulfanylpropanoic acid;5704-10-9
Categories:
Pharmaceutical Intermediates > Metabolic Bone Disease

Description

D-Cysteine is the D-isomer of cysteine and a powerful inhibitor of Escherichia coli growth. D-cysteine is mediated by D-amino acid oxidase to produce H2S and is a neuroprotectant against cerebellar ataxias. D-Cysteine could inhibit the growth and cariogenic virulence of dual-species biofilms formed by S. mutans and S. sanguinis[1][2][3].

Solid

D-cysteine is an optically active form of cysteine having D-configuration. It is a cysteine and a D-alpha-amino acid. It is a conjugate base of a D-cysteinium. It is a conjugate acid of a D-cysteinate(1-). It is an enantiomer of a L-cysteine. It is a tautomer of a D-cysteine zwitterion.|A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.

D-Cysteine Basic Attributes

Molecular Weight：

121.16

Exact Mass：

121.16

EC Number：

213-062-0

UNII：

IU8WN3PPI2

HScode：

29309013

Characteristics

PSA：

64.3

XLogP3：

-2.5

Appearance：

White Crystalline Powder

Density：

1.3±0.1 g/cm3

Melting Point：

~230 °C

Boiling Point：

293.9ºC at 760 mmHg

Flash Point：

131.5±25.9 °C

Refractive Index：

1.550

Water Solubility：

soluble in water (partly).Water solubility (per g/100 g H2O): 28 g/100 mL of solution at 25 deg C; 16 g/100 mL of solution at 20 deg C

Storage Conditions：

−20°C

Vapor Pressure：

6.73X10-7 mm Hg at 25 deg C (est)

Specific rotation：

Specific optical rotation: +6.5 deg at 25 °C/D (5 N HCl); +13.0 deg at 25 °C/D (glacial acetic acid)

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38-20/21/22-22

safety instructions：

26-36-37/39-22

Marks：

Xi,Xn

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents.

Precautionary statement(s)：

P264, P270, P301+P312, P330, P501

Hazard Statements：

H302

GHS Classification：

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P301+P312, P330, and P501|Aggregated GHS information provided by 39 companies from 1 notifications to the ECHA C&L Inventory.

D-Cysteine Use and Manufacturing

For organic synthesis

Computed Properties

Molecular Weight:121.16
XLogP3:-2.5
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:2
Exact Mass:121.01974964
Monoisotopic Mass:121.01974964
Topological Polar Surface Area:64.3
Heavy Atom Count:7
Complexity:75.3
Defined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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CAS No.: 921-01-7

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