Phenolphthalein

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Chemical Name	Phenolphthalein
Secondary Name	3,3-Bis(4-hydroxyphenyl)phthalide
Synonym(s)	3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone \| 3,3-Bis(p-hydroxyphenyl)phthalide \| Euchessina \| Koprol \| Laxogen \| Lilo \| NSC 10464 \| NSC 215214 \| Phthalimetten \| Phthalin \| Purga \| Purgen \| Purgophen \| Spulmako-lax \| TY 9 \| Trilax
CASRN	77-09-8
De minimis Limit %	0.1
M,P/OU Threshould (lb)	25,000/10,000
Listing Type	Individually listed chemical
Effective Date	01-JAN-11
Chemical Qualifier	No
Metal	No
Chemical of Special Concern	No
Per- or Polyfluoroalkyl Substance	No

Rulemaking Changes Affecting This Chemical

Status	Effective Reporting Year	FR Proposed Rule	FR Final Rule
Added	2011	75 FR 17333 (4/6/2010)	75 FR 72727 (11/26/2010)

Basis of OSHA Carcinogens

IARC	NTP	OSHA-Z
2B	RA	–

Structural image
Structural representation of Phenolphthalein

Structural representation of Phenolphthalein