4,5-Dihydro-3-methyl-1H-pyrazole

Modify Date: 2025-09-23 17:29:40

4,5-Dihydro-3-methyl-1H-pyrazole Structure
4,5-Dihydro-3-methyl-1H-pyrazole structure
 Common Name 4,5-Dihydro-3-methyl-1H-pyrazole
CAS Number 1911-30-4 Molecular Weight 84.11970
Density N/A Boiling Point N/A
Molecular Formula C4H8N2 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 3-Methyl-4,5-dihydro-1H-pyrazole
Synonym More Synonyms

 Chemical & Physical Properties

Molecular Formula C4H8N2
Molecular Weight 84.11970
Exact Mass 84.06870
PSA 24.39000
LogP 0.12000

 Safety Information

HS Code 2933199090

 Synthetic Route

4-CHLORO-2-BUTANONE structure

4-CHLORO-2-BUTANONE

CAS#:6322-49-2

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Maire Bulletin de la Societe Chimique de France, 1908 , vol. <4>3, p. 277,278
trimethyl(3-oxobutyl)azanium,iodide structure

trimethyl(3-oxo...

CAS#:31034-98-7

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Kost; Erschow Zhurnal Obshchei Khimii, 1957 , vol. 27, p. 1722,1726; engl. Ausg. S. 1793, 1796
1-formyl-5-methyl-4,5-dihydro-1H-pyrazole structure

1-formyl-5-meth...

CAS#:2004-76-4

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Elguero,J.; Jacquier,R. Bulletin de la Societe Chimique de France, 1965 , p. 769 - 778
5-methyl-2-pyrazoline structure

5-methyl-2-pyra...

CAS#:1568-20-3

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Elguero,J.; Jacquier,R. Bulletin de la Societe Chimique de France, 1965 , p. 769 - 778
5-methyl-2-pyrazoline structure

5-methyl-2-pyra...

CAS#:1568-20-3

Hydrochloric acid structure

Hydrochloric acid

CAS#:7647-01-0

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Elguero,J.; Jacquier,R. Bulletin de la Societe Chimique de France, 1965 , p. 769 - 778
1-formyl-5-methyl-4,5-dihydro-1H-pyrazole structure

1-formyl-5-meth...

CAS#:2004-76-4

Hydrochloric acid structure

Hydrochloric acid

CAS#:7647-01-0

~%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

5-methyl-2-pyrazoline structure

5-methyl-2-pyra...

CAS#:1568-20-3

Literature: Kost; Grandberg Zhurnal Obshchei Khimii, 1956 , vol. 26, p. 2319,2320, 2321; engl. Ausg. S. 2593, 2594,2595
Methyl vinyl ketone structure

Methyl vinyl ketone

CAS#:78-94-4

~22%

4,5-Dihydro-3-methyl-1H-pyrazole Structure

4,5-Dihydro-3-m...

CAS#:1911-30-4

Literature: Van Loevezijn, Arnold; Venhorst, Jennifer; Iwema Bakker, Wouter I.; De Korte, Cor G.; De Looff, Wouter; Verhoog, Stefan; Van Wees, Jan-Willem; Van Hoeve, Martijn; Van De Woestijne, Rob P.; Van Der Neut, Martina A. W.; Borst, Alice J. M.; Van Dongen, Maria J. P.; De Bruin, Natasja M. W. J.; Keizer, Hiskias G.; Kruse, Chris G. Journal of Medicinal Chemistry, 2011 , vol. 54, # 20 p. 7030 - 7054

 Customs

HS Code 2933199090
Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

3-methylpyrazoline
3-methyl-2-pyrazoline
4,5-Dihydro-3-methyl-1H-pyrazole
3-Methyl-4,5-dihydro-1H-pyrazol
1H-Pyrazole,4,5-dihydro-3-methyl
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