S-ETHYL TRIFLUOROTHIOACETATE

CAS No.：383-64-2

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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S-ETHYL TRIFLUOROTHIOACETATE Basic information

Product Name:	S-ETHYL TRIFLUOROTHIOACETATE
Synonyms:	ETHYL THIOL TRIFLUOROACETATE;TRIFLUOROTHIOACETIC ACID S-ETHYL ESTER;Acetic acid, trifluorothio-, S-ethyl ester;Ethyl trifluorothioacetate;Ethyl trifluorothiolacetate;ethyltrifluorothioacetate;S-Ethyl trifluoroethanethioate;S-Ethylthioltrifluoroacetate
CAS:	383-64-2
MF:	C4H5F3OS
MW:	158.14
EINECS:	206-852-1
Product Categories:	Organics;Protection & Derivatization Reagents (for Synthesis);Synthetic Organic Chemistry;Thiol Esters;Organic Building Blocks;Sulfur Compounds
Mol File:	383-64-2.mol

S-ETHYL TRIFLUOROTHIOACETATE Chemical Properties

Boiling point	90.5 °C(lit.)
density	1.234 g/mL at 25 °C(lit.)
refractive index	n20/D 1.376(lit.)
Fp	39 °F
storage temp.	Store at RT.
form	clear liquid
color	Colorless to Light yellow
BRN	1761564
CAS DataBase Reference	383-64-2(CAS DataBase Reference)
EPA Substance Registry System	Ethanethioic acid, trifluoro-, S-ethyl ester (383-64-2)

Safety Information

Hazard Codes	F,Xi
Risk Statements	11-36/37/38
Safety Statements	16-26-36
RIDADR	UN 3272 3/PG 2
WGK Germany	3
F	3-9-13-21
Hazard Note	Flammable/Irritant
HazardClass	3.1
PackingGroup	II
HS Code	2918300090

MSDS Information

Provider	Language
SigmaAldrich	English

S-ETHYL TRIFLUOROTHIOACETATE Usage And Synthesis

Chemical Properties	clear colorless to slightly yellow liquid
Uses	S-Ethyl trifluorothioacetate was used to selectively trifluoroacetylate amino groups in proteins.
Synthesis Reference(s)	Journal of the American Chemical Society, 74, p. 4005, 1952 DOI: 10.1021/ja01136a010
Purification Methods	If IR is free of OH bands then fractionally distil it; otherwise dilute the thio-ester with dry Et2O, wash with 5% KOH and H2O, dry over MgSO4 and fractionate it through an efficient column [Hauptschein et al. J Am Chem Soc 74 4005 1952]. [Beilstein 2 IV 567.] Powerful obnoxious odour.

S-ETHYL TRIFLUOROTHIOACETATE Preparation Products And Raw materials

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