Melting point :123-126 °C(lit.)
Boiling point :308.2°C (rough estimate)
Density :1,158 g/cm³
vapor pressure :2.6 x 10^-5 mmHg at 25 °C (Mabey et al., 1982)
refractive index :1.6266 (estimate)
storage temp. :Refrigerator
solubility :Soluble in ethanol (Weast, 1986).
pka :3.02±0.70(Predicted)
form :solid
color :Colorless to pale yellow to orange crystals
Water Solubility :221 mg/L at 25 °C (U.S. EPA, 1980a)
BRN :639793
Henry's Law Constant :2.1×10¹ mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Stability :Stable. Incompatible with strong oxidizing agents, strong acids.
Major Application :cleaning products
cosmetics
environmental
food and beverages
personal care InChI :1S/C12H12N2/c1-3-7-11(8-4-1)13-14-12-9-5-2-6-10-12/h1-10,13-14H
InChIKey :YBQZXXMEJHZYMB-UHFFFAOYSA-N
SMILES :N(Nc1ccccc1)c2ccccc2
CAS DataBase Reference :122-66-7(CAS DataBase Reference)
NIST Chemistry Reference :Hydrazine, 1,2-diphenyl-(122-66-7)
EPA Substance Registry System :1,2-Diphenylhydrazine (122-66-7)

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 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:	P201 Obtain special instructions before use. 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. P280 Wear protective gloves/protective clothing/eye protection/face protection. P308+P313 IF exposed or concerned: Get medical advice/attention. P391 Collect spillage. Hazardous to the aquatic environment P405 Store locked up. P501 Dispose of contents/container to..…