Melting point :167 °C (dec.) (lit.)
Boiling point :283.17°C (rough estimate)
Density :1.2100 (rough estimate)
refractive index :1.6400 (estimate)
storage temp. :Sealed in dry,Room Temperature
form :powder to crystal
pka :pK1:3.29;pK2:9.68 (20°C)
color :White to Light red to Green
BRN :975575
InChI :1S/C11H8O3/c12-9-6-5-7-3-1-2-4-8(7)10(9)11(13)14/h1-6,12H,(H,13,14)
InChIKey :UPHOPMSGKZNELG-UHFFFAOYSA-N
SMILES :OC(=O)c1c(O)ccc2ccccc12
CAS DataBase Reference :2283-08-1(CAS DataBase Reference)
EPA Substance Registry System :1-Naphthalenecarboxylic acid, 2-hydroxy- (2283-08-1)

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. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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.