D-Cysteine Chemical Properties

Melting point:

~230 °C (dec.)

Boiling point:

293.9±35.0 °C(Predicted)

Density 

1.334±0.06 g/cm3(Predicted)

storage temp. 

Keep in dark place,Inert atmosphere,2-8°C

solubility 

Aqueous Acid (Slightly), Water (Slightly)

pka

2.07±0.10(Predicted)

form 

Crystalline Powder

color 

White

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

Stability:

Stable. Incompatible with strong oxidizing agents.

LogP

0.230 (est)

CAS DataBase Reference

921-01-7(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

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

Safety Statements 

26-36-37/39-22

WGK Germany 

3

F 

10-23

HS Code 

29309013

MSDS

• Language:English Provider:SigmaAldrich

D-Cysteine Usage And Synthesis

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.]

D-Cysteine(921-01-7)Related Product Information

• β-Alanine
• D-Cysteine hydrochloride
• 3-Mercaptopropionic acid
• N-Acetyl-L-cysteine
• Mercaptoacetic acid
• Methyl 3-mercaptopropionate
• Glycine
• ISOOCTYL 3-MERCAPTOPROPIONATE
• 2-Ethylhexyl mercaptoacetate
• 2-Mercaptopropionic acid
• Sodium thioglycolate
• Calcium thioglycolate
• 6-Mercaptopurine
• DL-Homocysteine
• 2-Mercaptoethanol
• L-CYSTEINE HCL ANHYDROUS
• CYSTEINE
• D-Luciferin