Phenolphthalein CAS NO.77-09-8

Phenolphthalein Basic information

Product Name:    Phenolphthalein
Synonyms:    .alpha, alpha.-Di(p-hydroxyphenyl)phthalide;1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-;1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-;2,2-bis(p-hydroxyphenyl)phthalide;3,3-bis(4-hydroxyphenyl)-1(3h)-isobenzofuranon;alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid;alpha-di-(p-hydroxyphenyl)phthalide;alpha-di(p-hydroxyphenyl)phthalide
CAS:    77-09-8
MF:    C20H14O4
MW:    318.32
EINECS:    201-004-7
Product Categories:    
Mol File:    77-09-8.mol

Phenolphthalein Chemical Properties
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)
Fp     24 °C
solubility     Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.
form     Solid
Colour Index     764
pka    9.4(at 25℃)
color     White to yellow-white
Odor    Odorless
PH    7.8～10.0
PH Range    8.0(colorless)-10(Red)
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
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)

Safety Information
Hazard Codes     Xn,T,F,Xi
Risk Statements     40-22-10-36/38-23/25-11-36/37/38-68-62-45-39/23/24/25-23/24/25
Safety Statements     45-36/37-33-24-16-7-36-26-53
WGK Germany     3
RTECS     SM8380000
TSCA     Yes
HS Code     29322910
Hazardous Substances Data    77-09-8(Hazardous Substances Data)