Melting point :157-160 °C (lit.)
Boiling point :300 °C (lit.)
Density :1.398
refractive index :1.4600 (estimate)
Flash point :195°C
storage temp. :Sealed in dry,Room Temperature
solubility :Slightly soluble in hot water; freely soluble in hot ethanol, ether
pka :3.7(at 25℃)
form :Powder
color :Slightly yellow to brown
Specific Gravity :1.398
PH Range :Non& uorescence (2.5) to blue & uorescence (3.5)
Water Solubility :Freely soluble in hot alcohol and ether. Slightly soluble in hot water.
λmax :293nm
Merck :14,6381
BRN :1908896
Stability :Stable. Incompatible with strong bases, strong oxidizing agents.
Major Application :Photoresists, recording materials, waveguides, battery, ink, rubber, plastic films, agriculture, cosmetics, Sunscreen, method for preserving food, drugs, biosensors
InChI :1S/C11H8O2/c12-11(13)10-7-3-5-8-4-1-2-6-9(8)10/h1-7H,(H,12,13)
InChIKey :LNETULKMXZVUST-UHFFFAOYSA-N
SMILES :OC(=O)c1cccc2ccccc12
CAS DataBase Reference :86-55-5(CAS DataBase Reference)
NIST Chemistry Reference :1-Naphthalenecarboxylic acid(86-55-5)
EPA Substance Registry System :1-Naphthalenecarboxylic acid (86-55-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312 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.