Phenolphthalein

• CAT Number: R045102
• CAS Number: 77-09-8
• Molecular Formula: C20H14O4
• Molecular Weight: 318.32
• Purity: ≥95%
• Synonyms: 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; 3,3-Bis(4-hydroxyphenyl)phthalide; 3,3-Bis(p-hydroxyphenyl)phthalide; Euchessina; Koprol; Laxogen; Lilo; NSC 10464; NSC 215214; Phthalimetten; Phthalin; Purga; Purgen; Purgophen; Spulmako-lax; TY 9; Tr
• Target: Immunology and Inflammatory Disease Models
• Storage: Store at -20°C
• IUPAC Name: 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
• InChI: InChI=1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H
• InChIKey: KJFMBFZCATUALV-UHFFFAOYSA-N
• SMILES: C1=CC=C2C(=C1)C(=O)OC2(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

Phenolphthalein (CAS 77-09-8) is an organic compound used as a laboratory reagent and pH indicator. Phenolphthalein exerts laxative effects by stimulating the intestinal mucosa and constricting smooth muscles. However, phenolphthalein is no longer used as a laxative due to the suspected carcinogenicity of this compound.

 

Reference

1.Lo, Y., and H. M. Lee. "Curing effects on carbonation of concrete using a phenolphthalein indicator and Fourier-transform infrared spectroscopy." Building and environment 37.5 (2002): 507-514.
2.Liu, Zhihong, Faliang Luo, and Tianlu Chen. "Phenolphthalein immobilized membrane for an optical pH sensor." Analytica chimica acta 510.2 (2004): 189-194.