3-Methyl-1,2-thiazole-4-carboxylic acid

Modify Date: 2025-08-25 15:27:05

3-Methyl-1,2-thiazole-4-carboxylic acid Structure
3-Methyl-1,2-thiazole-4-carboxylic acid structure
Common Name 3-Methyl-1,2-thiazole-4-carboxylic acid
CAS Number 15903-66-9 Molecular Weight 143.164
Density 1.4±0.1 g/cm3 Boiling Point 182.3±33.0 °C at 760 mmHg
Molecular Formula C5H5NO2S Melting Point 235.5-237.5 °C
MSDS N/A Flash Point 64.1±25.4 °C

 Names

Name 3-Methylisothiazole-4-carboxylic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 182.3±33.0 °C at 760 mmHg
Melting Point 235.5-237.5 °C
Molecular Formula C5H5NO2S
Molecular Weight 143.164
Flash Point 64.1±25.4 °C
Exact Mass 143.004105
PSA 78.43000
LogP 0.95
Vapour Pressure 0.5±0.4 mmHg at 25°C
Index of Refraction 1.599
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi
HS Code 2934999090

 Synthetic Route

~79%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Theoclitou, Maria-Elena; Aquila, Brian; Block, Michael H.; Brassil, Patrick J.; Castriotta, Lillian; Code, Erin; Collins, Michael P.; Davies, Audrey M.; Deegan, Tracy; Ezhuthachan, Jayachandran; Filla, Sandra; Freed, Ellen; Hu, Haiqing; Huszar, Dennis; Jayaraman, Muthusamy; Lawson, Deborah; Lewis, Paula M; Nadella, Murali V. P.; Oza, Vibha; Padmanilayam, Maniyan; Pontz, Timothy; Ronco, Lucienne; Russell, Daniel; Whitston, David; Zheng, Xiaolan Journal of Medicinal Chemistry, 2011 , vol. 54, # 19 p. 6734 - 6750

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3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: WO2013/12918 A1, ; Paragraph 00563 ; WO 2013/012918 A1

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3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of Organic Chemistry, , vol. 43, p. 3736 - 3742

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3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: WO2013/12918 A1, ; WO 2013/012918 A1

~%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of Medicinal Chemistry, , vol. 54, # 19 p. 6734 - 6750

~%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of the Chemical Society, , p. 2032 - 2039

~%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of the Chemical Society, , p. 2032 - 2039

~%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of the Chemical Society, , p. 2032 - 2039

~%

3-Methyl-1,2-thiazole-4-carboxylic acid Structure

3-Methyl-1,2-th...

CAS#:15903-66-9

Literature: Journal of Organic Chemistry, , vol. 43, p. 3736 - 3742

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

4-Isothiazolecarboxylic acid, 3-methyl-
3-Methyl-1,2-thiazole-4-carboxylic acid
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