5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid

Modify Date: 2025-08-26 20:09:38

5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid Structure
5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid structure
Common Name 5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid
CAS Number 119-18-6 Molecular Weight 204.182
Density 1.4±0.1 g/cm3 Boiling Point 375.1±25.0 °C at 760 mmHg
Molecular Formula C10H8N2O3 Melting Point 237 °C(lit.)
MSDS USA Flash Point 180.6±23.2 °C

 Names

Name 1-Phenyl-5-pyrazolone-3-carboxylic Acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 375.1±25.0 °C at 760 mmHg
Melting Point 237 °C(lit.)
Molecular Formula C10H8N2O3
Molecular Weight 204.182
Flash Point 180.6±23.2 °C
Exact Mass 204.053497
PSA 69.97000
LogP -0.08
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.659

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xi
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2933199090

 Synthetic Route

~%

5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid Structure

5-Oxo-1-phenyl-...

CAS#:119-18-6

Literature: Bulletin de la Societe Chimique de France, , p. 370 - 380

 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, 4,5-dihydro-5-oxo-1-phenyl-
MFCD00037318
EINECS 204-304-6
1-Phenyl-5-pyrazolone-3-carboxylic acid (PCP)
1-Phenyl-3-carboxy-5-pyrazolone 3-Carboxy-1-phenyl-2-pyrazolin-5-one
5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid
5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid
5-oxo-1-phenyl-4H-pyrazole-3-carboxylic acid
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