Melting point :208-211 °C (dec.) (lit.)
Boiling point :237.46°C (rough estimate)
Density :1.3725 (rough estimate)
vapor pressure :0Pa at 25℃
FEMA :3798 | 2,4-DIHYDROXYBENZOIC ACID
refractive index :1.6710 (estimate)
Flash point :200 °C
storage temp. :Inert atmosphere,Room Temperature
solubility :8g/l
form :Crystalline Powder
pka :3.11, 8.55, 14.0(at 25℃)
color :Cream to slightly beige or pink
Odor :at 100.00?%. mild phenolic
Water Solubility :8 g/L (20 ºC)
JECFA Number :908
Merck :14,8157
BRN :1946213
InChIKey :UIAFKZKHHVMJGS-UHFFFAOYSA-N
LogP :0.98 at 23℃ and pH3.5
CAS DataBase Reference :89-86-1(CAS DataBase Reference)
NIST Chemistry Reference :2,4-Dihydroxybenzoic acid(89-86-1)
EPA Substance Registry System :2,4-Resorcylic acid (89-86-1)

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.