Molecular Structure of 4-Iodophenylhydrazine (CAS NO. 13116-27-3):

Systematic Name: (4-Iodophenyl)hydrazine  
Molecular Formula: C₆H₇IN₂
Molecular Weight: 234.03
CAS Registry Number: 13116-27-3 
Index of Refraction: 1.74
Molar Refractivity: 47.67 cm³
Molar Volume: 118.1 cm³
Surface Tension: 61.6 dyne/cm
Density: 1.981 g/cm³
Flash Point: 138.1 °C
Enthalpy of Vaporization: 54.52 kJ/mol
Boiling Point: 304.8 °C at 760 mmHg
Vapour Pressure: 0.000856 mmHg at 25°C
Melting Point: 102-106 ºC
Sensitive: Light Sensitive
BRN: 742475
Product Categories: Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes;Phenyls & Phenyl-Het;Phenyls & Phenyl-Het;Hydrazines;Nitrogen Compounds;Organic Building Blocks
Structure Descriptors:
SMILES: Ic1ccc(NN)cc1
InChI: InChI=1/C6H7IN2/c7-5-1-3-6(9-8)4-2-5/h1-4,9H,8H2
InChIKey: IQMLCMKMSBMMGR-UHFFFAOYAS
Std. InChI: InChI=1S/C6H7IN2/c7-5-1-3-6(9-8)4-2-5/h1-4,9H,8H2
Std. InChIKey: IQMLCMKMSBMMGR-UHFFFAOYSA-N

Safety Information of 4-Iodophenylhydrazine (CAS NO. 13116-27-3):
Hazard Codes: Xn,Xi 
Risk Statements: 22-36/37/38-43-40-20/21/22
R22:Harmful if swallowed
R36/37/38:Irritating to eyes, respiratory system and skin
R43:May cause sensitization by skin contact
R40:Limited evidence of a carcinogenic effect
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed
Safety Statements: 26-45-36/37/39-24
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection
S24:Avoid contact with skin
RIDADR: 2811
WGK Germany: 3
Hazard Note: Harmful/Light Sensitive
HazardClass: IRRITANT-HARMFUL, LIGHT SENSITIVE
PackingGroup: III

  4-Iodophenylhydrazine with cas registry number of 13116-27-3 is also called 1-(4-Iodophenyl)hydrazine with chemical property of white to orange-brown crystalline powder.