L-Cysteine

• CAS: 52-90-4
• Catalog Number: ACM52904
• Category: Other Products
• Molecular Weight: 121.16
• Molecular Formula: C3H7NO2S
• Synonyms: (R)-2-Amino-3-mercaptopropanoic acid
• IUPAC Name: (2R)-2-Amino-3-sulfanylpropanoic acid
• Canonical SMILES: C(C(C(=O)O)N)S
• InChI: InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
• InChI Key: XUJNEKJLAYXESH-REOHCLBHSA-N
• Boiling Point: 293.9±35.0 °C
• Melting Point: 240 °C(lit.)
• Flash Point: 131.5°C
• Density: 1.197 g/cm³
• Solubility: Freely soluble in water
• Appearance: White solid
• Storage: Store below +30 °C
• Active Content: 95%
• Assay: 0.99
• Complexity: 75.3
• Exact Mass: 121.01974964
• Hazard Statements: Xn,Xi
• Isomeric SMILES: C([C@@H](C(=O)O)N)S
• Monoisotopic Mass: 121.01974964
• Packaging: 1 kg
• pH: 4.5-5.5 (100g/l, H₂O, 20°C)
• Physical State: Solid
• pKa: 1.92(at 25 °C)
• Refractive Index: 8.8 ° (C=8, 1mol/L HCl)
• Safety Description: 36-37/39-26
• Solubility In Water: 280 g/L (25 ºC)
• Stability: Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases.
• Storage Conditions: Store at RT.
• Supplemental Hazard Statements: H302
• Symbol: GHS07
• Topological Polar Surface Area: 64.3 Ų

Custom Q&A

What is the molecular formula of L-cysteine?

The molecular formula of L-cysteine is C3H7NO2S.

What is the molecular weight of L-cysteine?

The molecular weight of L-cysteine is 121.16 g/mol.

What is the IUPAC name of L-cysteine?

The IUPAC name of L-cysteine is (2R)-2-amino-3-sulfanylpropanoic acid.

What is the InChI of L-cysteine?

The InChI of L-cysteine is InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1.

What is the InChIKey of L-cysteine?

The InChIKey of L-cysteine is XUJNEKJLAYXESH-REOHCLBHSA-N.

What is the canonical SMILES of L-cysteine?

The canonical SMILES of L-cysteine is C(C(C(=O)O)N)S.

What is the CAS number of L-cysteine?

The CAS number of L-cysteine is 52-90-4.

What is the ChEBI ID of L-cysteine?

The ChEBI ID of L-cysteine is CHEBI863.

What is the FEMA number of L-cysteine?

The FEMA number of L-cysteine is 3263.

What is the KEGG ID of L-cysteine?

The KEGG ID of L-cysteine is C00097.