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623-51-8 - Ethyl mercaptoacetate, 98+% - Ethyl thioglycolate - Mercaptoacetic acid ethyl ester - A14321 - Alfa Aesar

A14321 Ethyl mercaptoacetate, 98+%

CAS-Nummer
623-51-8
Synonyme
Ethyl thioglycolate
Mercaptoacetic acid ethyl ester

Größe Preis ($) Menge Verfügbarkeit
5g 22,60
100g 26,30
500g 94,70
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Ethyl mercaptoacetate, 98+%

MDL
MFCD00004874
EINECS
210-800-3

Chemische Eigenschaften

Formel
C4H8O2S
Molmasse
120.17
Schmelzpunkt
-80°
Siedepunkt
156-159°
Flammpunkt
48°(118°F)
Dichte
1.096
Brechungsindex
1.4580
Sensitivität
Air Sensitive
Löslichkeit
Not miscible or difficult to mix in water.

Anwendungen

It finds its application in the reaction of the dilithio-derivative with an aldehyde, followed by conversion to the episulfide by reaction with ethyl chloroformate, and desulfurization with triethyl phosphite, leads to the (E)-2-alkenoic acid with high stereoselectivity. It is used as depilatories, hair straightening agent, hair waving agent, and reducing agent in cosmetic industry.

Bemerkungen

Air sensitive. Store away from oxidizing agents and air. Keep the container tightly closed and place it in a cool, dry and well ventilated condition. Protect from electrostatic charges and store away from ignition sources. Store under inert gas.

Literaturverweise

Kazuhiko Tanaka, et.al. New Methods for Synthesis of α,β-Unsaturated Carboxylic Esters from Carbonyl Compounds Using Monoanions of Dithiocarbonates, and Dianions of Ethyl Mercaptoacetate and Ethyl 2-Mercaptopropionate.Bull. Chem. Soc. Jpn.,1979,52(12), 3619-3625.

Vyacheslav Ya Sosnovskikh, et al. Unexpected synthesis of dihydrothienocoumarin derivatives from 2-trifluoromethylchromones and ethyl mercaptoacetate.Tetrahedron Lett.,2001,42(30), 5117-5119.

Reaction of the dilithio-derivative with an aldehyde, followed by conversion to the episulfide by reaction with ethyl chloroformate, and desulfurization with triethyl phosphite, leads to the (E)-2-alkenoic acid with high stereoselectivity: Synthesis, 127 (1983):

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H226-H301

Flammable liquid and vapour. Toxic if swallowed.

Sicherheitshinweise: P260u-P201-P280h-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310a-P405-P501a

Obtain special instructions before use. Wear protective gloves/clothing. 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. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Beilstein
605581
Gefahrenklasse
3
Verpackungsgruppe
III
Harmonized Tariff Code
2930.90
TSCA
Yes
RTECS
AI6650000

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