[B20391] CAS 68-11-1 | Mercaptoacetic acid, 97+%

CAS : 68-11-1
UN# : UN1940
MDL : MFCD00004876
Hazard Class : 8
EINECS : 200-677-4
Packing Group : II

Other name :

Thioglycolic acid

Chemical Properties

Formula : C2H4O2S
Formula weight : 92.11
Melting Point : -12°
Boiling Point : 220°
Flash point : 119°(246°F)
Density : 1.295
Refractive Index : 1.5045
Sensitivity : Air Sensitive. Ambient temperatures.
Form : Liquid
Solubility : Miscible with water, ethanol, ethers, ketones, esters, chlorinated hydrocarbons, benzene and aromatic hydrocarbons. Slightly miscible with chloroform.

Applications

Reagent that protects tryptophan in amino acid analysis.Mercaptoacetic acid is used as a protecting agent for tryptophan in amino acid analysis and an acidity indicator. It finds application as an intermediate in the chemical reactions such as addition, elimination and cyclization. It acts as a precursor to ammonium thioglycolate, sodium thioglycolate and calcium thioglycolate. Its organotin derivatives are used as stabilizers for polyvinyl chloride (PVC). In organic synthesis, it acts as a nucleophile in thioglycolysis reactions and sulfur transfer agent for sulfonyl chloride synthesis. Further, it is used in leather processing.

Grade Specifications

GHS Hazard and Precautionary Statements

Hazard Statements : H301-H311-H331-H314Toxic if swallowed.Toxic in contact with skin.Toxic if inhaled.Causes severe skin burns and eye damage.
Precautionary Statements : P260-P301+P310-P303+P361+P353-P305+P351+P338-P361-P405-P501aDo not breathe dust/fume/gas/mist/vapours/spray.IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Remove/Take off immediately all contaminated clothing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References :

Beilstein : 506166Merck : 14,9336
UN# : UN1940