1-Benzyl-4-bromo-1H-pyrazole

Modify Date: 2024-01-07 19:49:31

1-Benzyl-4-bromo-1H-pyrazole Structure
1-Benzyl-4-bromo-1H-pyrazole structure
Common Name 1-Benzyl-4-bromo-1H-pyrazole
CAS Number 50877-41-3 Molecular Weight 237.09600
Density 1.44g/cm3 Boiling Point 344.4ºC at 760 mmHg
Molecular Formula C10H9BrN2 Melting Point 50-54°C
MSDS Chinese USA Flash Point 162.1ºC

 Names

Name 1-benzyl-4-bromopyrazole
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.44g/cm3
Boiling Point 344.4ºC at 760 mmHg
Melting Point 50-54°C
Molecular Formula C10H9BrN2
Molecular Weight 237.09600
Flash Point 162.1ºC
Exact Mass 235.99500
PSA 17.82000
LogP 2.69390
Index of Refraction 1.623
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi
RIDADR NONH for all modes of transport
HS Code 2933199090

 Synthetic Route

~89%

1-Benzyl-4-bromo-1H-pyrazole Structure

1-Benzyl-4-brom...

CAS#:50877-41-3

Literature: Kudo, Noriaki; Perseghini, Mauro; Fu, Gregory C. Angewandte Chemie - International Edition, 2006 , vol. 45, # 8 p. 1282 - 1284

~97%

1-Benzyl-4-bromo-1H-pyrazole Structure

1-Benzyl-4-brom...

CAS#:50877-41-3

Literature: MASSACHUSETTS INSTITUTE OF TECHNOLOGY Patent: WO2004/13094 A2, 2004 ; Location in patent: Page 99-100 ;

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1-Benzyl-4-bromo-1H-pyrazole Structure

1-Benzyl-4-brom...

CAS#:50877-41-3

Literature: Jones et al. Journal of the American Chemical Society, 1949 , vol. 71, p. 4000

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1-Benzyl-4-bromo-1H-pyrazole Structure

1-Benzyl-4-brom...

CAS#:50877-41-3

Literature: Begtrup, Mikael; Larsen, Peter; Vedsoe, Per Acta Chemica Scandinavica, 1992 , vol. 46, # 10 p. 972 - 980

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1-Benzyl-4-bromo-1H-pyrazole Structure

1-Benzyl-4-brom...

CAS#:50877-41-3

Literature: CHEMOCENTRYX Patent: WO2005/113513 A2, 2005 ; Location in patent: Page/Page column 180 ; WO 2005/113513 A2

 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

4-bromo-1-benzyl-1H-pyrazole
1-benzyl-4-bromo-1H-pyrazole
4-bromo-N-benzylpyrazole
N-benzyl-4-bromopyrazole
4-bromo-1-benzylpyrazole