SynonymUN 2572, 4-15-00-00050 (Beilstein Handbook Reference), Hydrazine, phenyl-, Fenilidrazina [Italian], HSDB 1117, UNII-064F424C9K, Hydrazinobenzene, Phenylhydrazin [German], AI3-15399, Hydrazine, phenyl, Phenyldiazane, UN2572, EINECS 202-873-5, Superlist Names Hydrazine, phenyl-, hydrazine,phenyl-, Fenylhydrazine, EC 202-873-5, 1-Phenylhydrazine, phenyl-hydrazin, CCRIS 511, Phenylhydrazine [UN2572] [Poison], Hydrazine-benzene, Fenylhydrazine [Dutch], Phenylhydrazine and its salts, Fenilidrazina, Phenylhydrazin, Phenylhydrazine, Monophenylhydrazine, Hydrazobenzene, BRN 0606080
Molecular weight108.14
EINECS202-873-5
SMILESc1ccc(cc1)NN
InChI1S/C6H8N2/c7-8-6-4-2-1-3-5-6/h1-5,8H,7H2
pKa Dissociation Constant8.79
Atmospheric OH Rate Constant4.27E-11 cm3/molecule-sec
log P (octanol-water)1.25
Water solubility1.27E+05 mg/L
Boiling Point243.5 ° C
Henry's Law Constant4.42E-09 atm-m3/mole
Merck14,7293
StabilityStable, but may decompose in sunlight. May be air or light sensitive. Incompatible with strong oxidizing agents, metal oxides.
Storage TemperatureStore at room temperature.
BRN Number606080
Flash Point192 °F
SensitiveAir & Light Sensitive
Density1.099 g/mL at 25 °C
Boiling Point238-241 °C
Vapor Density4.3
Refractive Index1.607
SolubilitySoluble in dilute acids.
Melting Point19 °C
Water solubility145 g/L (20 ยบC)
Vapor Pressure<0.1 mm Hg ( 20 °C)
Vapor Pressure0.026 mm Hg
Melting Point19.6 ° C