Melting point :123-126 °C(lit.)
Boiling point :>360 °C(lit.)
Density :1.2828 (rough estimate)
refractive index :1.6500 (estimate)
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :2.82(at 25℃)
Colour Index :11000
color :Yellow crystals or orange needles with blue case from EtOH
Water Solubility :29.59mg/L(25 ºC)
Merck :14,419
BRN :1913042
Stability :Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference :60-09-3(CAS DataBase Reference)
IARC :2B (Vol. 8, Sup 7) 1987
NIST Chemistry Reference :Benzenamine, 4-(phenylazo)-(60-09-3)
EPA Substance Registry System :4-Aminoazobenzene (60-09-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P308+P313 IF exposed or concerned: Get medical advice/attention.