Benzoic acid,4-[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-, ethylester

Modify Date: 2025-09-24 14:54:04

Benzoic acid,4-[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-, ethylester structure	Common Name	Benzoic acid,4-[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-, ethylester
	CAS Number	16926-70-8	Molecular Weight	350.37100
	Density	1.26g/cm3	Boiling Point	537ºC at 760mmHg
	Molecular Formula	C₁₉H₁₈N₄O₃	Melting Point	N/A
	MSDS	N/A	Flash Point	278.6ºC

Name	ethyl 4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]benzoate
Synonym	More Synonyms

Density	1.26g/cm3
Boiling Point	537ºC at 760mmHg
Molecular Formula	C₁₉H₁₈N₄O₃
Molecular Weight	350.37100
Flash Point	278.6ºC
Exact Mass	350.13800
PSA	83.69000
LogP	3.23890
Vapour Pressure	1.33E-11mmHg at 25°C
Index of Refraction	1.627

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DH4010450

CHEMICAL NAME :: Benzoic acid, p-((3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)azo)-, ethyl ester

CAS REGISTRY NUMBER :: 16926-70-8

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C19-H18-N4-O3

MOLECULAR WEIGHT :: 350.41

WISWESSER LINE NOTATION :: T5NNV DHJ BR& DNUNR DVO2& E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JDGRAX Journal of Drug Research. (National Organization for Drug Research and Control, POB 29, Cairo, Egypt) V.2- 1969- Volume(issue)/page/year: 7(3),1,1975

einecs 240-992-4

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