5-Chloro-1H-pyrazole-3-carboxylic acid

Modify Date: 2025-09-01 09:33:42

5-Chloro-1H-pyrazole-3-carboxylic acid Structure
5-Chloro-1H-pyrazole-3-carboxylic acid structure
Common Name 5-Chloro-1H-pyrazole-3-carboxylic acid
CAS Number 881668-70-8 Molecular Weight 146.532
Density 1.7±0.1 g/cm3 Boiling Point 445.6±25.0 °C at 760 mmHg
Molecular Formula C4H3ClN2O2 Melting Point N/A
MSDS N/A Flash Point 223.3±23.2 °C

 Names

Name 5-Chloro-1H-pyrazole-3-carboxylic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.7±0.1 g/cm3
Boiling Point 445.6±25.0 °C at 760 mmHg
Molecular Formula C4H3ClN2O2
Molecular Weight 146.532
Flash Point 223.3±23.2 °C
Exact Mass 145.988312
PSA 65.98000
LogP 1.10
Vapour Pressure 0.0±1.1 mmHg at 25°C
Index of Refraction 1.635

 Safety Information

HS Code 2933199090

 Synthetic Route

~78%

5-Chloro-1H-pyrazole-3-carboxylic acid Structure

5-Chloro-1H-pyr...

CAS#:881668-70-8

Literature: BIOLIPOX AB Patent: WO2007/45868 A1, 2007 ; Location in patent: Page/Page column 43 ;

 Precursor & DownStream

Precursor  1

DownStream  0

 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

1H-Pyrazole-3-carboxylic acid, 5-chloro-
QC-4470
5-Chloro-1H-pyrazole-3-carboxylic acid
5-chloropyrazole-3-carboxylic acid
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