Melting point :280 °C (dec.)(lit.)
Boiling point :514.77°C (rough estimate)
Density :0.79 g/mL at 20 °C
refractive index :1.5300 (estimate)
Flash point :12°C (53.6°F)
storage temp. :room temp
solubility :alcohol: passes test
pka :4.46(at 25℃)
form :crystalline
color :orange to red-brown, powder
PH Range :4.0 (colorless) - 6.6 (green)
Water Solubility :Soluble in ethanol and methanol. Slightly dimethyl sulfoxide. Insoluble in water.
λmax :509nm
BRN :58009
Stability :Stable. Incompatible with strong oxidizing agents.
Major Application :Electroluminescent devices, sol-gel silica films, integrated circuits, photoresists, lithographic printing plates, recording material, LED devices, photoconductors, Solid-state dye laser, lithographic printing plates, inks, Fluorescent pH sensors, emissive probes, chemotherapeutic treatment of disease, phototherapeutic treatment of disease, photodynamic treatment of disease
InChIKey :NZVMJBGGAQSNLI-UHFFFAOYSA-N
CAS DataBase Reference :76-54-0(CAS DataBase Reference)
EPA Substance Registry System :Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',7'-dichloro-3',6'-dihydroxy- (76-54-0)

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
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313 IF eye irritation persists: Get medical advice/attention.