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

B20391 Mercaptoacetic acid, 97+%

Codice CAS
68-11-1
Sinonimi
Thioglycolic acid

Dimensioni Prezzo ($) Quantità Disponibilità
100g 22,80
500g 39,60
2500g 156,00
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Mercaptoacetic acid, 97+%

MDL
MFCD00004876
EINECS
200-677-4

Proprietà chimiche

Formula
C2H4O2S
Peso formula
92.11
Punto di fusione
-12°
Punto di ebollizione
220°
Punto di infiammabilità
119°(246°F)
Densità
1.295
Indice di rifrazione
1.5045
Sensibilità
Air Sensitive
Solubilità
Miscible with water, ethanol, ethers, ketones, esters, chlorinated hydrocarbons, benzene and aromatic hydrocarbons. Slightly miscible with chloroform.

Applicazioni

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.

Note

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

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H301-H311-H331-H314

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

Dichiarazioni precauzionali: 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.

Altri riferimenti

Merck
14,9336
Beilstein
506166
Classe di rischio
8
Gruppo di imballaggio
II
Codice tariffe armonizzato
2930.90
TSCA
Yes
RTECS
AI5950000

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