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Thioglycolic acid solution

SIAL/T6750 - ~70 % (w/w) in H2O

Synonym: Mercaptoacetic acid

CAS Number: 68-11-1
Empirical Formula (Hill Notation): C2H4O2S
Molecular Weight: 92.12
EC Number: 200-677-4
MDL Number: MFCD00004876
Linear Formula: HSCH2COOH
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-T6750-50ML 50 mL
 $42.20
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concentration ~70 % (w/w) in H2O
density 1.25 g/mL at 25 °C (lit.)
InChI 1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4)
InChI key CWERGRDVMFNCDR-UHFFFAOYSA-N
Quality Level 200 
SMILES string OC(=O)CS
storage temp. 2-8°C
Caution: At room temperature, concentrations over about 70% in water tend to form 1-2% thioglycolides per month which hydrolyze to the original free compound when made acid or alkaline. The 70% solution oxidizes in air but is stable at room temperature when tightly closed. Thioglycolate salts may also lose purity on storage. The exclusion of air does not materially improve stability.
Density 1.25 g/mL at 25 °C (lit.)
Storage Temp. 2-8°C
UNSPSC 12352201

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