DL-Cysteine CAS 3374-22-9 EINECS NO 222-160-2

Product Description:

Product Name: DL-Cysteine CAS NO: 3374-22-9

Synonyms:

2-Amino-3-mercaptopropionicacid;

2-amino-3-sulfopropionic acid;

(RS)-2-Amino-3-mercapto-propansαure;

Chemical & Physical Properties:

Appearance: White solid

Assay :≥99.00%

Density: 1.334 g/cm</sup>3 </sup>

Boiling Point: 293.9℃ at 760 mmHg

Melting Point: 225℃ (dec.)

Flash Point: 131.5℃

Refractive Index: 1.549

Water Solubility: Soluble in water (partly), 1 N HCl (25 mg/ml), ethanol, and acetic acid. Insoluble in a-cetone.

Stability: Stable. Incompatible with strong oxidizing agents,

Storage Condition: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator (approx 4℃).

Safety Information:

Safety Statements: S26; S36/37/39

HS Code: 2930909090

Risk Statements: R20/21/22

Hazard Codes: Xn; Xi;C

Signal Word: Danger

Caution Statements: P280; P301 + P312 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338

Symbols: GHS05, GHS07

Hazard Declaration: H302; H314; H335

Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

Propanoic acid, or cysteine, has a sulfur-containing amino acid at position two and a sulfanyl group at position three. It performs the function of a basic metabolite. It is an alpha-amino acid, polar amino acid, and amino acid that contains sulfur. There is a sulfanylmethyl group in it. It is a conjugate base of a cysteinium. It is a cysteinate(1-) conjugate acid. It is a cysteine zwitterion's tautomer.

 

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