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| Name |
Naphthopyrin |
EINECS | N/A |
| CAS No. | 72017-28-8 | Density | 1.267g/cm3 |
| PSA | N/A | LogP | N/A |
| Solubility | N/A | Melting Point |
N/A |
| Formula | C21H18N3 | Boiling Point | 492.7°C at 760 mmHg |
| Molecular Weight | 312.42 | Flash Point | 251.8°C |
| Transport Information | N/A | Appearance | N/A |
| Safety | Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of NOx. | Risk Codes | N/A |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
N/A |
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: .png)
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.
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