L-Cysteine - UltraBio™, ≥98.5%(RT) , CAS No.52-90-4

CAS: 52-90-4 Cat. No.: L755721 Formula: C₃H₇NO₂S Molecular Weight: 121.16 Beilstein Registry Number: 4506 EC Number: 200-158-2

GRADE & PURITY UltraBio™, ≥98.5%(RT)

Storage

Protected from light,Room temperature,Argon charged

Shipped In

Normal

Overview

L-Cysteine has been used in quenching of unreacted maleimide during antibody grafting. It has also been used in the preparation of nitrosocysteine stock solution, that has been employed to induce S-nitrosylation to achieve reversible cysteine modification.

Specifications

Specifications & Purity

UltraBio™, ≥98.5%(RT)

Biochemical and Physiological Mechanisms

Cysteine is one of the functional amino acids that regulates metabolism for growth, reproduction, maintenance and immunity. Cysteine provides the disulfide linkage in proteins. It is directly associated with the transport of sulfur. Taurine, a metabolic p

Storage

Protected from light,Room temperature,Argon charged

Shipped In

Normal

Grade

UltraBio™

Purity

≥98.5%(RT)

Names and Identifiers

Canonical Smiles

C(C(C(=O)O)N)S

IUPAC Name

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

InChIKey

XUJNEKJLAYXESH-REOHCLBHSA-N

INCHI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

Isomeric SMILES

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

Molecular Weight

121.16

Beilstein

4506

Reaxy-Rn

1721406

Reaxys-RN_link_address

https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1721406&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Carboxylic acids and derivatives
      • Subclass Amino acids, peptides, and analogues
        • Level5 Amino acids and derivatives
          • Level6 Alpha amino acids and derivatives
            • Level7 Cysteine and derivatives

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Carboxylic acids and derivatives
• Subclass: Amino acids, peptides, and analogues
• Intermediate Tree Nodes: Amino acids and derivatives - Alpha amino acids and derivatives
• Direct Parent: Cysteine and derivatives
• Alternative Parents: L-alpha-amino acids Amino acids Monocarboxylic acids and derivatives Carboxylic acids Alkylthiols Organopnictogen compounds Organic oxides Monoalkylamines Hydrocarbon derivatives Carbonyl compounds
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Cysteine or derivatives - Alpha-amino acid - L-alpha-amino acid - Amino acid - Alkylthiol - Carboxylic acid - Monocarboxylic acid or derivatives - Organic oxygen compound - Primary amine - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Primary aliphatic amine - Carbonyl group - Amine - Hydrocarbon derivative - Organopnictogen compound - Organic oxide - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as cysteine and derivatives. These are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
• External Descriptors: Common amino acids

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: 1 M HCl: 1 M at 20 °C, clear, colorless
• Sensitivity: Light and Air sensitive
• Specific Rotation[α]: 8.8 ° (C=8, 1mol/L HCl)
• Melt Point(°C): 220°C
• Molecular Weight: 121.160 g/mol
• XLogP3: -2.500
• Hydrogen Bond Donor Count: 3
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 2
• Exact Mass: 121.02 Da
• Monoisotopic Mass: 121.02 Da
• Topological Polar Surface Area: 64.300 Ų
• Heavy Atom Count: 7
• Formal Charge: 0
• Complexity: 75.300
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 1
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

Frequently Asked Questions

What does UltraBio? mean?

UltraBio? indicates that the product has been processed and tested for biological and biochemical applications. Specifications may include endotoxin limits, microbial controls, sterility, low DNase/RNase/protease activity, and verified biological activity where relevant.

How should this product be stored?

Store at room temperature, protected from light, under argon. It is supplied under an argon blanket; reseal under inert gas after each use.

How is this product shipped?

This product ships under standard ambient conditions. No temperature-controlled packaging is required.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 52-90-4, the molecular formula is C3H7NO2S, and the molecular weight is 121.16 g/mol. InChIKey XUJNEKJLAYXESH-REOHCLBHSA-N.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.