Melting point :193-195 °C (dec.) (lit.)
Boiling point :267.22°C (rough estimate)
Density :1.3067 (rough estimate)
vapor pressure :0Pa at 25℃
refractive index :1.4700 (estimate)
Flash point :220 °C
storage temp. :Store below +30°C.
solubility :soluble
form :Powder
pka :10.34±0.20(Predicted)
color :Orange
PH :7 (1.9g/l, H2O, 20℃)
Water Solubility :Soluble in water (1.9 g/L at 20°C).
Decomposition :194 ºC
Merck :14,5104
BRN :383659
Stability :Stable. Incompatible with strong acids.
InChIKey :JXDYKVIHCLTXOP-UHFFFAOYSA-N
LogP :0.45
CAS DataBase Reference :91-56-5(CAS DataBase Reference)
NIST Chemistry Reference :Isatin(91-56-5)
EPA Substance Registry System :1H-Indole-2,3-dione (91-56-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378 In case of fire: Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool.