D-Cysteine hydrochloride

Basic Information

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CAS Number

32443-99-5

Molecular Formula

C3H8ClNO2S

Molecular Weight

157.62 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

Melting Point

185 ºC (dec.)

Specific Rotation

-6.4 º (c=5%,5M HCl)

SMILES

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C(C(C(=O)O)N)S.Cl

InChI

InChI=1S/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H/t2-;/m1./s1

InChIKey

IFQSXNOEEPCSLW-HSHFZTNMSA-N

LogP

-0.25010000000000004

Topological Polar Surface Area

63.32000000000001 Å²

Hydrogen Bond Donor/Acceptor

3 / 3

Complexity

75.3

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

D-CYSTEINE HCL
C3H8ClNO2S
AM81652
Z1126749021
H-D-Cys-OH.HCl
(s)-2-amino-3-mercaptopropanoic acid hydrochloride
NS00093522
HY-W002074
D-Cysteine, hydrochloride
A821273
AKOS015892730
H-D-Cys-OH HCl H
NSC742579
AS-30670
(2S)-2-amino-3-sulfanyl-propanoic acid hydrochloride
EINECS 251-043-9
D-Cysteine hydrochloride
(2S)-2-amino-3-sulfanylpropanoic acid;hydrochloride
NSC-742579
H-D-Cys-OH hydrochloride monohydrate
Q-101768
MFCD00150051
MFCD00012632
IFQSXNOEEPCSLW-HSHFZTNMSA-N
CS-W002074
D-cysteine, hydrochloride hydrate
32443-99-5
(2S)-2-amino-3-sulfanylpropanoic acid hydrochloride
NSC 742579
SCHEMBL730594
H-D-Cys-OH.HCl.H2O

MDL Number

MFCD00012632

Customs Code

2930909090

FAQ

What is D-Cysteine hydrochloride (CAS: 32443-99-5)?

D-Cysteine hydrochloride is a crystalline amino acid salt with the chemical formula C3H7NO2S·HCl. It is a white powder that is soluble in water and has a slightly acidic pH. This compound is commonly used in various scientific and industrial applications due to its unique chemical properties and biological activity.

What are the main uses of D-Cysteine hydrochloride (CAS: 32443-99-5)?

D-Cysteine hydrochloride is widely used in pharmaceuticals as a precursor for drug synthesis, in the food industry as a flavor enhancer and antioxidant, and in research for studying protein structures and enzymatic reactions. It also finds applications in cosmetic formulations and as a chiral reagent in organic chemistry.

Is D-Cysteine hydrochloride (CAS: 32443-99-5) safe?

D-Cysteine hydrochloride is generally considered safe when handled properly. However, it should be used with caution, as direct contact may cause skin or eye irritation. Safety standards recommend wearing gloves, goggles, and a lab coat during handling, and ensuring proper ventilation. It is non-toxic in moderate amounts but should be kept away from children and pets.

How should D-Cysteine hydrochloride (CAS: 32443-99-5) be stored?

D-Cysteine hydrochloride should be stored in a cool, dry place away from moisture and light. It is best kept in a sealed container at temperatures below 25°C and humidity levels below 60%. Proper storage ensures stability and prevents degradation, maintaining its quality and effectiveness for use in various applications.