1-NAPHTHOLPHTHALEIN Indicator grade

Chemical Information
Article No.	AL3171
Grade	Indicator grade
CAS Number	596-01-0
Molecular Formula	C28H18O4
Molecular Weight	418.45
HS Code	32049000
Shelf Life	5 Years

Physical Properties
Physical state at 20 °C	Solid
Vapour density	14.44
Colour	Black powder
Solubility in water(% weight)	Insoluble in water
Melting point/ Freezing point(°C)	238 - 240 °C
Partition coefficient Log Pow octanol / water at 20 °C	5.41
Odour	Characteristic odour

Safety Information and Hazard Symbols
Signal Word	Warning
Precaution Statement	P261-P305 + P351 + P338
Symbol	GHS07
Hazardous Statement	H315-H319-H335

Specifications
Appearance	Light Pink to Beige to Red-Brown Powder