The Molecular formula of 4-Cyanophenylhydrazine hydrochloride (CAS NO.2863-98-1): C₇H₈ClN₃
The Molecular Weight of 4-Cyanophenylhydrazine hydrochloride (CAS NO.2863-98-1): 169.61
Molecular Structure:

H bond acceptors: 3
H bond donors: 3
Freely Rotating Bonds: 2
Polar Surface Area: 27.03Ų
Melting point: 241-244 ^°C (dec.)(lit.)
Boiling Point: 325.9 °C at 760 mmHg
Flash Point: 150.9 °C
Index of Refraction: 1.609
Molar Refractivity: 38.58 cm³
Molar Volume: 111.3 cm³
Polarizability: 15.29 10^-24cm³
Surface Tension: 59.4 dyne/cm
Density: 1.19 g/cm³
Enthalpy of Vaporization: 56.81 kJ/mol
Vapour Pressure: 0.000223 mmHg at 25°C
Sensitive: Moisture Sensitive
BRN: 3565486
Systematic Name: 4-hydrazinobenzonitrile 

The Hazard Codes of 4-Cyanophenylhydrazine hydrochloride (CAS NO.2863-98-1):  Xn
Hazard Note: Harmful
The Risk Statements information of 4-Cyanophenylhydrazine hydrochloride (CAS NO.2863-98-1):
20/21/22:  Harmful by inhalation, in contact with skin and if swallowed 
36/37/38:  Irritating to eyes, respiratory system and skin 
The Safety Statements information of 4-Cyanophenylhydrazine hydrochloride (CAS NO.2863-98-1)：
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36:  Wear suitable protective clothing 
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
PackingGroup: III

  Butenafine HCl , with CAS number of 2863-98-1, can be called Benzonitrile,4-hydrazino-, monohydrochloride (9CI) ; Benzonitrile, p-hydrazino-,hydrochloride (7CI) ; Benzonitrile, p-hydrazino-, monohydrochloride (8CI) ; (4-Cyanophenyl)hydrazine hydrochloride ; 4-(Hydrazino)benzonitrilehydrochloride ; 4-Hydrazinobenzonitrile monohydrochloride ; 4-Hydrazinylbenzonitrile hydrochloride ; p-Cyanophenylhydrazine hydrochloride ; 4-Hydrazinobenzonitrile hydrochloride (1:1) ; 4-Hydrazinylbenzolcarbonitrilhydrochlorid ; 4-Hydrazinylbenzonitrile chlorhydrate ; 4-Hydrazinylbenzonitrile hydrochloride ; benzonitrile, 4-hydrazinyl-, hydrochloride (1:1) .It is a pale orange to brown powder.