Phenolphthalein

Melting point :261-263 °C (lit.)
Boiling point :417.49°C (rough estimate)
Density :1.27 g/cm3 at 32 °C
refractive index :1.5400 (estimate)
Flash point :24 °C
storage temp. :no restrictions.
solubility :Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.
form :Solid
pka :9.4(at 25℃)
Colour Index :764
color :White to yellow-white
PH Range :8.0(colorless)-10(Red)
PH :7.8～10.0
Odor :Odorless
Water Solubility :<0.1 g/100 mL
λmax :552nm, 553nm, 374nm, 205nm, 229nm, 276nm
Merck :14,7243
BRN :284423
Stability :Stable. Incompatible with strong oxidizing agents, alkalies.
Major Application :Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases
LogP :2.410
CAS DataBase Reference :77-09-8(CAS DataBase Reference)
IARC :2B (Vol. 76) 2000
NIST Chemistry Reference :Phenolphthalein(77-09-8)
EPA Substance Registry System :3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8)

Symbol(GHS):
Signal word:	Danger
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 H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P308+P313 IF exposed or concerned: Get medical advice/attention. P332+P313 IF SKIN irritation occurs: Get medical advice/attention.