phenazine

CAS No. 92-82-0

Formula: C12H8N2
Basic Info

Phenazine (C12H8N2 or C6H4N2C6H4), also called azophenylene, dibenzo-p-diazine, dibenzopyrazine, and acridizine, is a dibenzo annulated pyrazine and the parent substance of many dyestuffs, such as the toluylene red, indulines and safranines (and the closely related eurhodines). Phenazine crystallizes in yellow needles, which are only sparingly soluble in alcohol. Sulfuric acid dissolves it, forming a deep-red solution.

Formula
C12H8N2
Molecular Weight
180.205
Exact Mass
180.069
LogP
2.783
PSA
25.78
Synonyms

Azophenylene

Dibenzopyrazine

EINECS 202-193-9

Phenazine

dibenzo{b,e}pyrazine

Dibenzo-p-diazine

9,10-diazaanthracene

Acridizine

Dibenzoparadiazine

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Properties
Appearance & Physical State
yellow to brown crystalline powder
Density
1.25 g/cm3
Boiling Point
360ºC
Melting Point
174-177ºC
Flash Point
160.3ºC
Water Solubility
insoluble
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Storage Condition
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Safety Info
RTECS
SG1360000
Safety Statements
S36/37
WGK Germany
3
Risk Statements
R22; R68
HS Code
29163900
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : 400 MHz in CDCl3
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IR Spectrum IR : CCl4 solution
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Mass Spectrum Mass spectrum (electron ionization)
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ESR Spectrum ESR : ANION RADICAL, ELECTROREDUCTION IN CH3CN
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UV Spectrum UV/Visible spectrum
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Toxicity
ACUTE TOXICITY DATA
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Type of Test
LD - Lethal dose
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
>500 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,23,1953
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Intraperitoneal
Species Observed
Rodent - mouse
Dose/Duration
400 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
European Journal of Medicinal Chemistry--Chimie Therapeutique. (Editions Scientifiques Elsevier, 29 rue Buffon, F-75005, Paris, France) V.9- 1974- Volume(issue)/page/year: 10,273,1975
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Intravenous
Species Observed
Rodent - mouse
Dose/Duration
180 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02474

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