4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester

Modify Date: 2024-02-02 16:21:57

4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester Structure
4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester structure
Common Name 4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester
CAS Number 20737-48-8 Molecular Weight 187.21600
Density 1.325g/cm3 Boiling Point 270.7ºC at 760 mmHg
Molecular Formula C7H9NO3S Melting Point 104°C
MSDS N/A Flash Point 117.5ºC

 Names

Name (5E)-5-[ethoxy(hydroxy)methylidene]-2-methyl-1,3-thiazol-4-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.325g/cm3
Boiling Point 270.7ºC at 760 mmHg
Melting Point 104°C
Molecular Formula C7H9NO3S
Molecular Weight 187.21600
Flash Point 117.5ºC
Exact Mass 187.03000
PSA 87.66000
LogP 1.33380
Vapour Pressure 0.00405mmHg at 25°C
Index of Refraction 1.562
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi
HS Code 2934100090

 Synthetic Route

~42%

4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester Structure

4-Hydroxy-2-met...

CAS#:20737-48-8

Literature: WO2005/97766 A1, ; Page/Page column 28-29 ; WO 2005/097766 A1

~29%

4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester Structure

4-Hydroxy-2-met...

CAS#:20737-48-8

Literature: US2014/148468 A1, ; Page/Page column ;

~81%

4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester Structure

4-Hydroxy-2-met...

CAS#:20737-48-8

Literature: Monatshefte fur Chemie, , vol. 140, # 2 p. 209 - 211

 Customs

HS Code 2934100090
Summary 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

 Synonyms

4-Hydroxy-2-Methyl-5-Thiazolecarboxylic Acid Ethyl Ester
ethyl 4-hydroxy-2-methyl-5-thiazolecarboxylate
QC-6168
ethyl 4-hydroxy-2-methyl-1,3-thiazole-5-carboxylate
2-methyl-5-ethoxy-carbonyl-4-hydroxy-thiazole
2-methyl-4-oxo-4,5-dihydro-thiazole-5-carboxylic acid ethyl ester
4-Hydroxy-2-methylthiazole-5-carboxylic acid ethyl ester
ethyl-4-hydroxy-2-methylthiazole-5-carboxylate
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