Product Name

  • Name

    1,5-dimethyl-4-(naphthalen-2-ylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

  • EINECS
  • CAS No. 72017-28-8
  • Density 1.267g/cm3
  • Solubility
  • Melting Point
  • Formula C21H18N3
  • Boiling Point 492.7°C at 760 mmHg
  • Molecular Weight 312.42
  • Flash Point 251.8°C
  • Transport Information
  • Appearance
  • Safety Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of NOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 72017-28-8 (1,5-dimethyl-4-(naphthalen-2-ylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one)
  • Hazard Symbols
  • Synonyms
  • PSA
  • LogP

Naphthopyrin Chemical Properties

IUPAC Name: 1,5-Dimethyl-4-(naphthalen-2-ylamino)-2-phenylpyrazol-3-one
Synonyms of Naphthopyrin (CAS NO.72017-28-8): 1,5-dimethyl-4-(naphthalen-2-ylamino)-2-phenylpyrazol-3-one
CAS NO: 72017-28-8
Molecular Formula: C21H19N3O
Molecular Weight : 329.395060 g/mol
Molecular Structure:
H bond acceptors: 4
H bond donors: 1
Freely Rotating Bonds: 3 P
olar Surface Area: 26.79 Å2
Index of Refraction: 1.71
Molar Refractivity: 101.62 cm3
Molar Volume: 259.8 cm3
Surface Tension: 58.7 dyne/cm
Density: 1.267 g/cm3
Flash Point: 251.8 °C
Enthalpy of Vaporization: 75.97 kJ/mol
Boiling Point: 492.7 °C at 760 mmHg
Vapour Pressure: 7.51E-10 mmHg at 25°C

Naphthopyrin Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LDLo subcutaneous 4100mg/kg (4100mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: EXCITEMENT

BEHAVIORAL: COMA		 Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 186, Pg. 195, 1937.
rat LDLo subcutaneous 3600mg/kg (3600mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: COMA		 Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 186, Pg. 195, 1937.

Naphthopyrin Safety Profile

Moderately toxic by subcutaneous route. When Naphthopyrin (CAS NO.72017-28-8) is heated to decomposition, it emits toxic fumes of NOx.

Related Products

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View