ethyl 4-methylpent-2-ynoate

Modify Date: 2025-10-09 20:37:35

ethyl 4-methylpent-2-ynoate Structure
ethyl 4-methylpent-2-ynoate structure
Common Name ethyl 4-methylpent-2-ynoate
CAS Number 38491-47-3 Molecular Weight 140.18000
Density 0.948g/cm3 Boiling Point 198.1ºC at 760 mmHg
Molecular Formula C8H12O2 Melting Point N/A
MSDS N/A Flash Point 69.6ºC

 Names

Name ethyl 4-methylpent-2-ynoate
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.948g/cm3
Boiling Point 198.1ºC at 760 mmHg
Molecular Formula C8H12O2
Molecular Weight 140.18000
Flash Point 69.6ºC
Exact Mass 140.08400
PSA 26.30000
LogP 1.20890
Index of Refraction 1.438
InChIKey VYXQGOIIOVRLKW-UHFFFAOYSA-N
SMILES CCOC(=O)C#CC(C)C

 Safety Information

HS Code 2916190090

 Synthetic Route

~71%

ethyl 4-methylpent-2-ynoate Structure

ethyl 4-methylp...

CAS#:38491-47-3

Literature: Golden, Jennifer E.; Sanders, Shanina D.; Muller, Kristine M.; Buerli, Roland W. Tetrahedron Letters, 2008 , vol. 49, # 5 p. 794 - 798

~94%

ethyl 4-methylpent-2-ynoate Structure

ethyl 4-methylp...

CAS#:38491-47-3

Literature: Organ; Bratovanov Tetrahedron Letters, 2000 , vol. 41, # 36 p. 6945 - 6949

~%

ethyl 4-methylpent-2-ynoate Structure

ethyl 4-methylp...

CAS#:38491-47-3

Literature: ELI LILLY AND COMPANY Patent: WO2007/140174 A2, 2007 ; Location in patent: Page/Page column 18 ;

~%

ethyl 4-methylpent-2-ynoate Structure

ethyl 4-methylp...

CAS#:38491-47-3

Literature: Tokuda, Masao; Nishio, Osamu Journal of Organic Chemistry, 1985 , vol. 50, # 10 p. 1592 - 1596

~%

ethyl 4-methylpent-2-ynoate Structure

ethyl 4-methylp...

CAS#:38491-47-3

Literature: Wenkert,E.; McPherson,C.A. Synthetic Communications, 1972 , vol. 2, p. 331 - 334

 Customs

HS Code 2916190090
Summary 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

 Synonyms

4-methyl-pent-2-ynoic acid ethyl ester
4-Methyl-pent-2-insaeure-aethylester
Isopropylpropiolsaeure-ethylester
2-Pentynoic acid,4-methyl-,ethyl ester
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