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68-11-1 - Mercaptoacetic acid, 97+% - Thioglycolic acid - B20391 - Alfa Aesar

B20391 Mercaptoacetic acid, 97+%

CAS Number
68-11-1
Synonyms
Thioglycolic acid

Size Price ($) Quantity Availability
100g 21.43
500g 39.63
2500g 153.47
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Mercaptoacetic acid, 97+%

MDL
MFCD00004876
EINECS
200-677-4

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
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.

Notes

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

Literature References

Si, L.; Ariya, P. A. Photochemical reactions of divalent mercury with thioglycolic acid: Formation of mercuric sulfide particles. Chemosphere 2015, 119, 467-472.

Maltas, E.; Ertekin, B. Binding of actin to thioglycolic acid modified superparamagnetic nanoparticles for antibody conjugation. Int. J. Biol. Macromol. 2015, 72, 984-989.

GHS Hazard and Precautionary Statements

Hazard Statements: H301-H311-H331-H314

Toxic if swallowed. Toxic in contact with skin. Toxic if inhaled. Causes severe skin burns and eye damage.

Precautionary Statements: P260-P261-P280-P301+P310-P303+P361+P353-P305+P351+P338-P361-P301+P330+P331-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. 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. Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,9336
Beilstein
506166
Hazard Class
8
Packing Group
II
Harmonized Tariff Code
2930.90
TSCA
Yes
RTECS
AI5950000

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