Mercaptoacetic acid, 97+%, Thermo Scientific Chemicals

Description

Air Senstitive

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.

Solubility
Miscible with water, ethanol, ethers, ketones, esters, chlorinated hydrocarbons, benzene and aromatic hydrocarbons. Slightly miscible with chloroform.

Notes
Air sensitive. Incompatible with strong oxidizing agents and strong acids.

Specifications

Chemical Identifiers

• CAS: 68-11-1
• Molecular Formula: C2H4O2S
• Molecular Weight (g/mol): 92.112
• MDL Number: MFCD00004876
• InChI Key: CWERGRDVMFNCDR-UHFFFAOYSA-N
• Synonym: mercaptoacetic acid, thioglycolic acid, 2-thioglycolic acid, acetic acid, mercapto, 2-mercaptoacetic acid, sulfanylacetic acid, thiovanic acid, mercaptoessigsaeure, thioglycollic acid, glycolic acid, thio
• PubChem CID: 1133
• ChEBI: CHEBI:30065
• IUPAC Name: 2-sulfanylacetic acid
• SMILES: C(C(=O)O)S

• Melting Point: °C to 12°C
• Density: 1.295
• Boiling Point: 220°C
• Flash Point: 119°C (246°F)
• Refractive Index: 1.5045
• Linear Formula: HSCH₂CO₂H
• Quantity: 100 g
• UN Number: UN1940
• Beilstein: 506166
• Sensitivity: Air Sensitive
• Merck Index: 14,9336
• Solubility Information: Miscible with water,ethanol,ethers,ketones,esters,chlorinated hydrocarbons,benzene and aromatic hydrocarbons. Slightly miscible with chloroform.
• Formula Weight: 92.11
• Percent Purity: ≥97%
• Physical Form: Liquid
• Chemical Name or Material: Mercaptoacetic acid, 98%

Safety and Handling

Hazard Category	H301+H311+H331-H314-H335
Hazard Statement	GHS H Statement H301-H311-H331-H314
Precautionary Statement	P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: THIOGLYCOLIC ACID
EINECSNumber	200-677-4
RTECSNumber	AI5950000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only