CAS 921-01-7

D-Cysteine

Description:

D-Cysteine is an amino acid that serves as a building block for proteins and is characterized by its thiol (-SH) group, which imparts unique chemical properties. It is the D-enantiomer of cysteine, meaning it has a specific spatial arrangement of atoms that distinguishes it from its L-form, which is more commonly found in nature. D-Cysteine is less prevalent in biological systems but can be synthesized and utilized in various biochemical applications. It plays a role in redox reactions due to the reactivity of its thiol group, making it important in the formation of disulfide bonds and in cellular antioxidant defense mechanisms. D-Cysteine is soluble in water and exhibits a slightly acidic nature, with a pKa value that allows it to exist in both protonated and deprotonated forms depending on the pH of the environment. Its CAS number, 921-01-7, is a unique identifier that facilitates its recognition in chemical databases and literature. Overall, D-Cysteine is significant in research and industrial applications, particularly in the fields of biochemistry and pharmaceuticals.

Formula: C₃H₇NO₂S

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

InChI key: InChIKey=XUJNEKJLAYXESH-UWTATZPHSA-N

SMILES: [C@H](C(O)=O)(CS)N

Synonyms:

• (2S)-2-Amino-3-sulfanylpropanoic acid
• (R)-2-Amino-3-mercaptopropanoic acid
• (R)-Cysteine
• (S)-2-Amino-3-mercaptopropanoic acid
• (S)-Cysteine
• <span class="text-smallcaps">D</span>-Cysteine
• Cysteine, <span class="text-smallcaps">D</span>-
• D-cycsteine
• D-cysteine free base crystalline
• Propanoic acid, 2-amino-3-mercapto-,(R)-
• D-Cysteine
• Cysteine, D-

D-Cysteine, 98%

CAS: 921-01-7

D-Cysteine is an important source of sulfide in human metabolism. It is the precursor for glutathione. It plays important role in protein structure and in metal binding. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and lab

Formula: C₃H₇NO₂S

Purity: 98%

Color and Shape: Crystalline powder, White to off-white

Molecular weight: 121.15

Ref: 02-H62627

D-Cysteine

CAS: 921-01-7

D-Cysteine, a D-isomer, suppresses E. coli growth, forms H2S via D-amino acid oxidase, and protects against cerebellar ataxia.

Formula: C₃H₇NO₂S

Purity: 98.65% - 99.89%

Color and Shape: Solid

Molecular weight: 121.16

Ref: TM-T10933

(2S)-2-amino-3-sulfanylpropanoic acid

CAS: 921-01-7

Formula: C₃H₇NO₂S

Purity: 95%

Color and Shape: Solid

Molecular weight: 121.1582

Ref: IN-DA00IH0S

D-Cysteine

CAS: 921-01-7

Formula: C₃H₇NO₂S

Purity: ≥ 98.0%

Color and Shape: White or almost white crystalline powder

Molecular weight: 121.16

Ref: 7W-GM7143

D-Cysteine

CAS: 921-01-7

D-Cysteine

Purity: 97%

Molecular weight: 121.16g/mol

Ref: 54-OR1012766

D-Cysteine

CAS: 921-01-7

D-Cysteine

Purity: ≥95%

Molecular weight: 121.16g/mol

Ref: 54-BUP18573

D-Cysteine

CAS: 921-01-7

Formula: C₃H₇NO₂S

Purity: >95.0%(T)

Color and Shape: White to Light yellow powder to crystal

Molecular weight: 121.15

Ref: 3B-C1916

D-Cysteine

CAS: 921-01-7

Formula: C₃H₇NO₂S

Molecular weight: 121.15

Ref: 4Z-C-7776

D-Cysteine

Controlled Product

CAS: 921-01-7

Applications D-Cysteine is a strong inhibitor of Escherichia coli growth and also functions to provide inorganic sulfates for the sulfation of xenobiotics. D-Cysteine is a non-physiological isomer of L-Cysteine (C995000), and is not involved in protein or glutathione synthesis.
References Glazenburg, E., et al.: Biochem. Pharm., 33, 625 (1984); Klassen, C. & Boles, J.: FASEB J., 11, 404 (1997); Soutourina, J., et al.: J. Biol. Chem., 276, 40864 (2001);

Formula: C₃H₇NO₂S

Color and Shape: Neat

Molecular weight: 121.16

Ref: TR-C995020

D-Cysteine

CAS: 921-01-7

D-Cysteine is a versatile building block for the synthesis of complex compounds and peptides.

Formula: C₃H₇NO₂S

Molecular weight: 121.16 g/mol

Ref: 3D-C-9600

D-Cysteine

CAS: 921-01-7

Formula: C₃H₇NO₂S

Purity: 95%

Color and Shape: Solid

Molecular weight: 121.15

Ref: 10-F049424

D-Cysteine (base) extrapure, 99%

CAS: 921-01-7

Formula: C₃H₇NO₂S

Purity: min. 99%

Color and Shape: White, Crystalline powder, Clear, Colourless

Molecular weight: 121.16

Ref: SR-73383

D-Cysteine

CAS: 921-01-7

Formula: C₃H₇NO₂S

Molecular weight: 121.15

Ref: ST-EA-CP-C275003

D-Cysteine

CAS: 921-01-7

D-Cysteine is the L-cysteine stereoisomer. It has been shown to inhibit the response of nicotinic acetylcholine receptors and toll-like receptor 4, which are proteins that play a role in inflammation. D-Cysteine also inhibits the production of nitric oxide by inhibiting NADPH oxidase. This inhibition leads to decreased inflammation, as well as decreased oxidation of proteins and DNA. D-Cysteine has been shown to be a specific inhibitor of wild type strains of Escherichia coli, but not mutant strains with defects in iron homeostasis. The enzyme activity for d-cysteine is also inhibited by l-cysteine, which may result in drug interactions. D-Cysteine can be found naturally in foods such as garlic, onions, broccoli, and cauliflower.

Formula: C₃H₇NO₂S

Color and Shape: White Powder

Molecular weight: 121.16 g/mol

Ref: 3D-FC30342