Melting point :227-229 °C(lit.)
Boiling point :345.05°C (rough estimate)
Density :1.2695 (rough estimate)
refractive index :1.5389 (estimate)
storage temp. :Store below +30°C.
solubility :almost transparency in Methanol
form :powder to crystal
pka :pKa 3.20(H2O t=23.0) (Uncertain);5.06(H2O t=23.0) (Uncertain)
color :White to Orange to Green
PH :4-5 (H2O, 20℃)
Water Solubility :insoluble (20 ºC)
Merck :14,3310
BRN :2053625
InChIKey :GWZCCUDJHOGOSO-UHFFFAOYSA-N
CAS DataBase Reference :482-05-3(CAS DataBase Reference)
NIST Chemistry Reference :2,2'-Biphenyldicarboxylic acid(482-05-3)
EPA Substance Registry System :[1,1'-Biphenyl]-2,2'-dicarboxylic acid (482-05-3)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.