D-Cystine | CAS No. 349-46-2

D-Cystine

Basic Information

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CAS Number

349-46-2

Molecular Formula

C6H12N2O4S2

Molecular Weight

240.31 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Basic Physical Properties

Melting Point

265 °C (dec.)

Boiling Point

468.2℃ at 760 mmHg

Water Solubility

0.057 g/L (25 ºC)

Flash Point

237 °C

Refractive Index

1.6000 (estimate)

Specific Rotation

214 º (c=1, 1 N HCl)

SMILES

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N[C@H](CSSC[C@@H](N)C(=O)O)C(=O)O

InChI

InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m1/s1

InChIKey

LEVWYRKDKASIDU-QWWZWVQMSA-N

LogP

-0.8083999999999993

Topological Polar Surface Area

126.64 Å²

Hydrogen Bond Donor/Acceptor

6 / 6

Complexity

192

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-Cystine
D(+)-3,3-Dithiobis(2-aminopropanoic acid)
H-D-(Cys)_2-OH~(+)-3,3-Dithiobis(2-aminopropionic acid)
(H-D-Cys-OH) 2
(S)-Cystine
ChlorodiphenylMethane
D(+)-CYSTINE
D,L-cystine
D-CYSTINE CRYSTALLINE
H-D-(Cys)2-OH
H-D-CYSTINE
meso-Cystine
D(+)-3,3'-Dithiobis(2-aminopropanoic acid)

MDL Number

MFCD00002610

Customs Code

29309013

FAQ

What is D-Cystine (CAS: 349-46-2)?

D-Cystine, also known as D-cysteine, is an amino acid with the molecular formula C5H11NO3S. It is the D-isomer of cysteine and is a colorless crystalline solid at room temperature.

What are the main uses of D-Cystine (CAS: 349-46-2)?

D-Cystine is primarily used as a nutritional supplement and in pharmacological applications. It is also used in the food industry as a flavor enhancer and in research as a reagent.

Is D-Cystine (CAS: 349-46-2) safe?

D-Cystine is generally considered safe for most uses. However, it should be handled with care and stored properly to avoid degradation. It is not considered hazardous under normal conditions but should be kept away from heat and direct light.

How should D-Cystine (CAS: 349-46-2) be stored?

D-Cystine should be stored in a cool, dry place, protected from direct light and heat. It should be kept in a tightly sealed container to prevent degradation. Avoid storing it near sources of heat or direct sunlight.