Melting point :101-102 °C
Boiling point :356.8°C (rough estimate)
Density :1.1303 (rough estimate)
refractive index :1.5770 (estimate)
storage temp. :Sealed in dry,2-8°C
solubility :DMSO (Slightly), Methanol (Slightly)
pka :3.01±0.10(Predicted)
form :Powder
Colour Index :11160
color :Red-brown
PH :pH : 1.4～2.8
Water Solubility :7mg/L(37 ºC)
Merck :14,420
BRN :6506005
Stability :Light Sensitive
CAS DataBase Reference :97-56-3(CAS DataBase Reference)
NIST Chemistry Reference :Benzenamine, 2-methyl-4-[(2-methylphenyl)azo]-(97-56-3)
IARC :2B (Vol. 8, Sup 7) 1987
EPA Substance Registry System :C.I. Solvent Yellow 3 (97-56-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.