Specialty Additives Available to Source

Phenolphthalein USP ACS Powder

CAS 77-09-8 · MF C20H14O4 · MW 318.3 g/mol · UN 1993 (PHENOLPHTHALEIN)

Phenolphthalein USP ACS Powder is a high-purity chemical indicator widely used in analytical chemistry and laboratory titration processes.

SDS / TDS Download
CAS Number
77-09-8
Molecular Formula
C20H14O4
Molecular Weight
318.3 g/mol
Material Family
Specialty Additives
Functional Roles
Physical Properties
melting_point
496 to 504 u00b0F (NTP, 1992)
density
1.299 at 77 u00b0F (NTP, 1992) - Denser than water; will sink
solubility
less than 1 mg/mL at 66 u00b0F (NTP, 1992)
vapor_pressure
6.7X10-13 mm Hg @ 25 u00b0C /Estimated/
GHS / SDS Safety Danger
Irritant Health Hazard
  • H351: Suspected of causing cancer [Warning Carcinogenicity]
  • H350: May cause cancer [Danger Carcinogenicity]
  • H361 (90.5%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
  • H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
  • H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
  • H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]
  • H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
  • H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
  • H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
  • H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
  • H341 (99.5%): Suspected of causing genetic defects [Warning Germ cell mutagenicity]
  • H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H350 (99.7%): May cause cancer [Danger Carcinogenicity]
  • H361f ***: Suspected of damaging fertility [Warning Reproductive toxicity]
  • H361f: Suspected of damaging fertility [Warning Reproductive toxicity]
Chemical Identity
CAS Number77-09-8
IUPAC Name3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
InChI KeyKJFMBFZCATUALV-UHFFFAOYSA-N
PubChem CID 4764
INCI NamePHENOLPHTHALEIN
Synonyms & Trade Names
phenolphthalein Phthalimetten Euchessina Phenolax Phthalin Espotabs Purgophen Koprol Laxogen Trilax Purga Spulmako-lax Chocolax Purgen Dihydroxyphthalophenone
Full Description

Phenolphthalein USP ACS Powder is a high-purity chemical indicator widely used in analytical chemistry and laboratory titration processes.