Product Name

  • Name

    Thioacetic acid

  • EINECS 208-063-8
  • CAS No. 507-09-5
  • Article Data61
  • CAS DataBase
  • Density 1.046 g/cm3
  • Solubility 27 g/L (15 °C) (hydrolyse) in water
  • Melting Point -17 °C
  • Formula C2H4OS
  • Boiling Point 93 °C at 760 mmHg
  • Molecular Weight 76.1192
  • Flash Point 11.1 °C
  • Transport Information UN 2436 3/PG 2
  • Appearance clear,yellow liquid with a strong, unpleasant odor
  • Safety 9-16-26-36/37/39-45
  • Risk Codes 11-34-22
  • Molecular Structure Molecular Structure of 507-09-5 (Thioacetic acid)
  • Hazard Symbols FlammableF,CorrosiveC
  • Synonyms Aceticacid, thio- (7CI,8CI);Acetyl mercaptan;Ethanethiolic acid;Methanecarbothiolic acid;Monothioacetic acid;Thiacetic acid;Ethanethioic acid;
  • PSA 55.87000
  • LogP 0.46270

Synthetic route

acetic acid
64-19-7

acetic acid

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With tetraphosphorus decasulfide; triphenyl antimony oxide In benzene at 40℃; for 1h;92%
With Lawessons reagent In acetonitrile at 100℃; for 0.25h; Inert atmosphere; Microwave irradiation;
acetyl chloride
75-36-5

acetyl chloride

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With N,N-dimethylthioformamide; hydrogen sulfide In dichloromethane at 25℃;90%
Ketene
463-51-4

Ketene

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With hydrogen sulfide; triethylamine In butan-1-ol at -10 - -5℃;65%
C8H12O4S4(75)Se

C8H12O4S4(75)Se

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With hydrogenchloride; 75Se-sodium selenite; sodium acetate at 5℃; for 0.833333h; Equilibrium constant; pH= 2.9; apparent equilibrium constant;
With hydrogenchloride; 75Se-sodium selenite; sodium acetate at 5℃; for 0.833333h; Equilibrium constant; pH= 1.3; apparent equilibrium constant;
acetyl sulfide
3232-39-1

acetyl sulfide

A

Ketene
463-51-4

Ketene

B

methylthiol
74-93-1

methylthiol

C

carbon oxide sulfide
463-58-1

carbon oxide sulfide

D

S-methyl thiolacetate
1534-08-3

S-methyl thiolacetate

E

thioacetic acid
507-09-5

thioacetic acid

F

H2S

H2S

Conditions
ConditionsYield
In chlorobenzene at 256.2℃; Rate constant; Product distribution; Thermodynamic data; log A, Ea; several temperatures;
2-(2-furyl)-1,3-thiazolide-4-carboxylic acid
72678-98-9

2-(2-furyl)-1,3-thiazolide-4-carboxylic acid

A

furfuryl disulfide
4437-20-1

furfuryl disulfide

B

2-thiolomethyl-furan
98-02-2

2-thiolomethyl-furan

C

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With baker's yeast; phosphate buffer at 30℃; for 168h; Product distribution; Further Variations:; pH-values; substrate concentration; aerobic or anaerobic mode;
With baker's yeast; phosphate buffer at 30℃; for 24h; pH=8.0; anaerobic;A n/a
B 37 % Chromat.
C n/a
hydrogen sulfide
7783-06-4

hydrogen sulfide

acetic anhydride
108-24-7

acetic anhydride

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
byproducts: acetic acid; in the presence of sodium hydroxide;
byproducts: acetic acid; in the presence of sodium hydroxide;
carbon suboxide
504-64-3

carbon suboxide

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With hydrogen sulfide In not given use of excess H2S;;
hydrgensulfide(1-)

hydrgensulfide(1-)

acetyl chloride
75-36-5

acetyl chloride

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
Kinetics; byproducts: Cl(1-); in gas phase;
Kinetics; byproducts: Cl(1-); in gas phase;
hydrgensulfide(1-)

hydrgensulfide(1-)

Acetyl bromide
506-96-7

Acetyl bromide

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
Kinetics; byproducts: Br(1-); in gas phase;
Kinetics; byproducts: Br(1-); in gas phase;
parathion-methyl
298-00-0

parathion-methyl

A

4-nitro-phenol
100-02-7

4-nitro-phenol

B

2-propyl-1-pentanol
58175-57-8

2-propyl-1-pentanol

C

O,O,S-trimethyl phosphorothioate
152-20-5

O,O,S-trimethyl phosphorothioate

D

poly(methacrylic acid)
79-41-4

poly(methacrylic acid)

E

methyl paraoxon
950-35-6

methyl paraoxon

F

Diethyl phthalate
84-66-2

Diethyl phthalate

G

hydroquinone
123-31-9

hydroquinone

H

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With oxygen at 22.2 - 25.3℃; Kinetics; Quantum yield; Wavelength; UV-irradiation; Neat (no solvent);
parathion-methyl
298-00-0

parathion-methyl

A

4-nitro-phenol
100-02-7

4-nitro-phenol

B

2-propyl-1-pentanol
58175-57-8

2-propyl-1-pentanol

C

O,O,S-trimethyl phosphorothioate
152-20-5

O,O,S-trimethyl phosphorothioate

D

poly(methacrylic acid)
79-41-4

poly(methacrylic acid)

E

methyl paraoxon
950-35-6

methyl paraoxon

F

propionic acid
802294-64-0

propionic acid

G

hydroquinone
123-31-9

hydroquinone

H

thioacetic acid
507-09-5

thioacetic acid

Conditions
ConditionsYield
With water at 22.2 - 25.3℃; Kinetics; Quantum yield; Wavelength; UV-irradiation; Neat (no solvent); Inert atmosphere;

Thioacetic acid Specification

The Thioacetic acid, with the CAS registry number 507-09-5,is also known as Thiolacetic acid; Ethanethioic acid. It belongs to the product categories of Organic matters.Its EINECS number is 208-063-8. This chemical's molecular formula is C2H4OS and molecular weight is 76.11. What's more,Its systematic name is Thioacetic acid.It is a colourless fuming liquid with an unpleasant odour which is stable,flammable,incompatible with metals,strong oxidizing agents.It is used in organic chemistry for the introduction of thiol groups in molecules. In one application, it is used with AIBN in a free radical mediated nucleophilic addition to an exocyclic alkene forming a thioester.

Physical properties about Thioacetic acid are:
(1)ACD/LogP:  0.528; (2)# of Rule of 5 Violations:  0; (3)ACD/LogD (pH 5.5):  -1.03; (4)ACD/LogD (pH 7.4):  -2.75; (5)ACD/BCF (pH 5.5):  1.00; (6)ACD/BCF (pH 7.4):  1.00; (7)ACD/KOC (pH 5.5):  1.27; (8)ACD/KOC (pH 7.4):  1.00; (9)#H bond acceptors:  1; (10)#H bond donors:  0; (11)#Freely Rotating Bonds:  0; (12)Index of Refraction:  1.442; (13)Molar Refractivity:  19.241 cm3; (14)Molar Volume:  72.717 cm3; (15)Surface Tension:  28.9309997558594 dyne/cm; (16)Density:  1.047 g/cm3; (17)Flash Point:  11.111 °C; (18)Enthalpy of Vaporization:  33.279 kJ/mol; (19)Boiling Point:  92.999 °C at 760 mmHg; (20)Vapour Pressure:  50.4099998474121 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES:O=C(S)C;
(2)Std. InChI:InChI=1S/C2H4OS/c1-2(3)4/h1H3,(H,3,4);
(3)Std. InChIKey:DUYAAUVXQSMXQP-UHFFFAOYSA-N.

Safety Information of Thioacetic acid:
The Thioacetic acid is highly flammable and harmful if swallowed.It may causes burns.So it should keep container in a well-ventilated place and away from sources of ignition. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) .When you use it wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

The toxicity data of Thioacetic acid are as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 75mg/kg (75mg/kg)   National Technical Information Service. Vol. AD691-490,

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