4-Bromo-1,2-dihydro-3H-indazol-3-one

Modify Date: 2025-09-23 12:58:55

4-Bromo-1,2-dihydro-3H-indazol-3-one Structure
4-Bromo-1,2-dihydro-3H-indazol-3-one structure
Common Name 4-Bromo-1,2-dihydro-3H-indazol-3-one
CAS Number 864845-15-8 Molecular Weight 213.031
Density 1.9±0.1 g/cm3 Boiling Point 422.1±25.0 °C at 760 mmHg
Molecular Formula C7H5BrN2O Melting Point N/A
MSDS N/A Flash Point 209.1±23.2 °C

 Names

Name 4-bromo-1,2-dihydroindazol-3-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.9±0.1 g/cm3
Boiling Point 422.1±25.0 °C at 760 mmHg
Molecular Formula C7H5BrN2O
Molecular Weight 213.031
Flash Point 209.1±23.2 °C
Exact Mass 211.958511
PSA 48.91000
LogP 2.53
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.784

 Safety Information

HS Code 2933990090

 Synthetic Route

~47%

4-Bromo-1,2-dihydro-3H-indazol-3-one Structure

4-Bromo-1,2-dih...

CAS#:864845-15-8

Literature: Roche Palo Alto LLC Patent: US2007/123527 A1, 2007 ; Location in patent: Page/Page column 89 ;

 Precursor & DownStream

Precursor  1

DownStream  0

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

3H-Indazol-3-one, 4-bromo-1,2-dihydro-
4-Bromo-1,2-dihydro-3H-indazol-3-one
4-Bromo-3-hydroxy (1H)indazole
4-Bromo-1H-indazol-3-ol
4-bromo-1H-indazol-3(2H)-one
QC-2844
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