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T30805

Sigma-Aldrich

Thioacetic acid

96%

Synonym(s):

TAA, TMA, Thiacetic acid

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About This Item

Linear Formula:
CH3COSH
CAS Number:
507-09-5
Molecular Weight:
76.12
Beilstein:
1733298
EC Number:
208-063-8
MDL number:
MFCD00004853
UNSPSC Code:
12352106
PubChem Substance ID:
24900104
NACRES:
NA.22

Quality Level

200

Assay

96%

refractive index

n20/D 1.465 (lit.)

bp

88-91.5 °C (lit.)

density

1.065 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(S)=O

InChI

1S/C2H4OS/c1-2(3)4/h1H3,(H,3,4)

InChI key

DUYAAUVXQSMXQP-UHFFFAOYSA-N

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Application

Thioacetic acid (TAA) can undergo:
  • Enantioselective addition to nitroalkenes to form chiral 1,2-aminothiol derivatives in the presence of a novel sulfinyl urea organocatalyst. This method has been successfully employed in the synthesis of antifungal drug, sulconazole.
  • Asymmetric Michael addition reaction with chalcones in the presence of a bifunctional amine thiourea catalyst to form synthetically useful thioesters.
  • Asymmetric 1,6-conjugate addition with para-quinone methides in the presence of a chiral phosphoric acid catalyst to form chiral sulfur-containing diphenylmethane-type compounds.
  • Conjugate addition to methacrylamides with chiral trans-2,5-disubstituted pyrrolidine auxiliaries to form chiral β-mercaptocarboxylic acid derivatives.

Thioacetic acid is a reagent for introduction of the thiol group into organic molecules.

Signal Word

Danger

Hazard Statements

H225,H301,H317,H318,H332

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 2 - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

64.4 °F - closed cup

Flash Point(C)

18 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Phosphoric Acid Catalyzed Asymmetric 1, 6?Conjugate Addition of Thioacetic Acid to para?Quinone Methides.
Dong N, et al.
Angewandte Chemie (International Edition in English), 55(4), 1460-1464 (2016)
Asymmetric induction in the conjugate addition of thioacetic acid to methacrylamides with chiral auxiliaries.
Kim B H, et al.
Tetrahedron Asymmetry, 16(6), 1215-1220 (2005)
Organocatalytic enantioselective Michael addition of thioacetic acid to enones.
Li Hao, et al.
Tetrahedron Letters, 47(18), 3145-3148 (2006)
Md Ashraful Hoque et al.
Bioorganic & medicinal chemistry letters, 22(21), 6770-6772 (2012-10-02)
Two thioacetate tails were introduced to the chlamydocin- and CHAP31-related cyclic tetrapeptides. An intramolecular disulfide bridge could be formed in the CHAP31-related cyclic peptides. Both the thioacetate-tailed and disulfide-bridged peptides were potent histone deacetylase inhibitors in the presence of sulfhydryl
Krista M Wager et al.
Organic letters, 13(15), 4052-4055 (2011-07-07)
A method for preparing benzyl aryl thioethers utilizing an in situ deprotection of benzyl thioacetates as an alternative to free thiols as starting materials has been developed and optimized. Good to excellent yields of diverse benzyl aryl thioethers are obtained
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