Melting point :180-184 °C (lit.)
Boiling point :246.06°C (rough estimate)
Density :1.0924 (rough estimate)
refractive index :1.5418 (estimate)
Flash point :252 °C
storage temp. :Sealed in dry,Room Temperature
solubility :DMSO (Slightly), Methanol (Slightly)
pka :9.58±0.40(Predicted)
form :Solid
color :Beige to Dark Brown
Water Solubility :Slightly soluble in water.
λmax :335nm(Cyclohexane)(lit.)
BRN :1908499
Cosmetics Ingredients Functions :HAIR DYEING
InChI :1S/C10H8O2/c11-8-5-4-7-2-1-3-10(12)9(7)6-8/h1-6,11-12H
InChIKey :ZUVBIBLYOCVYJU-UHFFFAOYSA-N
SMILES :Oc1ccc2cccc(O)c2c1
CAS DataBase Reference :575-38-2(CAS DataBase Reference)
NIST Chemistry Reference :1,7-Dihydroxynaphthalene(575-38-2)
EPA Substance Registry System :Napthalene-1,7-diol (575-38-2)

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.