Melting point :128-131 °C(lit.)
Boiling point :300.5 °C
Density :0.9678 (rough estimate)
refractive index :n20/D 1.341
Flash point :244 °C
storage temp. :-20°C
solubility :2% HCl: 10 mg/mL, clear
form :powder (may contain lumps)
pka :4.59±0.10(Predicted)
Colour Index :37230
color :light brown
Water Solubility :Slightly soluble in water.
Merck :14,9514
BRN :2210640
Exposure limits :TLV-TWA none; carcinogenicity: A2 — Suspected Human Carcinogen (ACGIH), Animal Limited Evidence (IARC).
InChIKey :NUIURNJTPRWVAP-UHFFFAOYSA-N
IARC :2B (Vol. 1, Sup 7) 1987
NIST Chemistry Reference :[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethyl-(119-93-7)
EPA Substance Registry System :3,3'-Dimethylbenzidine (119-93-7)

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 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P308+P313 IF exposed or concerned: Get medical advice/attention.