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Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate

CAS No.
4160-61-6
Chemical Name:
Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate
Synonyms
Methyl 4-oxothiane-3-carboxylate;Methyl 4-oxotetrahydrothiopyran-3-carboxylate;3-Methoxycarbonyl-4-thianone;3-methoxycarbonyltetrahydropyran-4-one;3-Carbomethoxytetrahydro-1,4-thiapyrone;3-(Carbomethoxy)tetrahydrothiopyran-4-one;4-oxotetrahydro-2H-thiopyran-3-carboxylate;ETHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE;methyl 4-oxo-tetrahydro-2H-thiopyran-3-carboxylate;Methyletetrahydro-4-oxo-2H-thiopyran-3-carboxylate
CBNumber:
CB4807180
Molecular Formula:
C7H10O3S
Molecular Weight:
174.22
MDL Number:
MFCD00203485
MOL File:
4160-61-6.mol
MSDS File:
SDS
Last updated:2026-09-12 18:52:59

Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate Properties

Boiling point 285℃
Density 1.244
Flash point 137℃
storage temp. Sealed in dry,Room Temperature
pka 10.41±0.20(Predicted)
form Liquid or Solid
color Clear colorless to pale yellow

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
Risk Statements  36/37/38
Safety Statements  23-26-36/37/39
HS Code  29349990

Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate price More Price(54)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR946543 Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 96% 4160-61-6 250mg $21 2026-06-04 Buy
Apolloscientific OR946543 Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 96% 4160-61-6 1g $28 2026-06-04 Buy
Apolloscientific OR946543 Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 96% 4160-61-6 5g $127 2026-06-04 Buy
Apolloscientific OR946543 Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 96% 4160-61-6 25g $419 2026-06-04 Buy
Apolloscientific OR946543 Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 96% 4160-61-6 100g $1590 2026-06-04 Buy
Product number Packaging Price Buy
OR946543 250mg $21 Buy
OR946543 1g $28 Buy
OR946543 5g $127 Buy
OR946543 25g $419 Buy
OR946543 100g $1590 Buy

Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate Chemical Properties, Uses, Production

Uses

Methyl tetrahydro-4-oxo-2H-thiaran-3-carboxylic acid is a carboxylic acid ester derivative that can be used as an organic intermediate.

Chemical Properties

Light pink liquid

Synthesis

Dimethyl 3,3'-thiodipropanoate

4131-74-2

METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE

4160-61-6

General procedure for the synthesis of methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate from dimethyl 3,3'-thiodipropionate: 2.7098 g of NaH (60%) was added to a dry 250 ml three-necked flask, followed by the addition of 40 ml of anhydrous tetrahydrofuran (THF) and stirring for 10 min at room temperature. Dimethyl 3,3'-thiodipropionate (10.1015 g) dissolved in THF was added slowly dropwise. After dropwise addition, the reaction mixture was heated to reflux for about 1 hour. The reflux was continued for 1 hour after rinsing the dropping funnel with 10 ml of THF. The reaction was stopped and cooled to room temperature. The pH of the reaction solution was adjusted to 6-7 with 2% hydrochloric acid and then extracted with dichloromethane (30 ml x 3). The organic layers were combined, washed with saturated sodium chloride solution, collected and dried over anhydrous sodium sulfate. After filtration, the solvent was removed under reduced pressure to give 7.5639 g of a yellow oily liquid product in 88.7% yield.

References

[1] Synthesis, 2007, # 10, p. 1584 - 1586
[2] Patent: CN104086562, 2016, B. Location in patent: Paragraph 0136; 0137
[3] Patent: CN105153190, 2017, B. Location in patent: Paragraph 0134; 0165; 0166
[4] Organic Letters, 2018, vol. 20, # 19, p. 6104 - 6107
[5] Journal of the American Chemical Society, 1997, vol. 119, # 18, p. 4285 - 4291

4131-74-2
4160-61-6
Synthesis of Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate from Dimethyl 3,3'-thiodipropanoate
Global Suppliers ( 82)
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View Latest Price from Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE  pictures 2026-08-20 METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
4160-61-6
$1.10 1g 99.00% 100 Tons Min Dideu Industries Group Limited
ETHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE pictures 2019-07-10 ETHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
4160-61-6
$1.00 1KG 99% 1ton Career Henan Chemical Co
4-OXO-TETRAHYDRO-THIOPYRAN-3-CARBOXYLIC ACID METHYL ESTER Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate ,96% 3-(Carbomethoxy)tetrahydrothiopyran-4-one 3-Carbomethoxytetrahydro-1,4-thiapyrone 3-Methoxycarbonyl-4-thianone methyl 4-oxo-tetrahydro-2H-thiopyran-3-carboxylate 2H-Thiopyran-3-carboxylic acid, tetrahydro-4-oxo-, Methyl ester Methyletetrahydro-4-oxo-2H-thiopyran-3-carboxylate ETHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE ISO 9001:2015 REACH 4-oxotetrahydro-2H-thiopyran-3-carboxylate 3-methoxycarbonyltetrahydropyran-4-one Methyl 4-oxotetrahydrothiopyran-3-carboxylate Methyl 4-oxothiane-3-carboxylate Methyl tetrahydro-4-oxo-2H-thiopyran-3-carboxylate 4160-61-6 C7H10O3S