WebPhenolphthalein is an organic compound used as a laboratory reagent and pH indicator. Phenolphthalein exerts laxative effects by stimulating the intestinal mucosa and … WebSep 11, 2007 · Identification Summary. Phenolphthalein is a drug used for symptomatic relief of constipation and bowel cleansing prior to medical procedures.. Generic Name Phenolphthalein DrugBank Accession Number DB04824 Background. Phenolphthalein was withdrawn in Canada due to concerns with carcinogenicity in 1997.

Phenolphthalein ACS reagent 77-09-8 - Sigma-Aldrich

WebMay 6, 2009 · Phenolphthalein was formally banned by the Food and Drug Administration as an ingredient in over-the-counter laxatives in 1999 due to concerns of possible carcinogenicity. 2 Products containing phenolphthalein, including ex-lax, were reformulated in 1997 in anticipation of the ban; the active ingredient in ex-lax is now senna. http://www.ecns.cn/news/society/2024-01-15/detail-ihafurte1835391.shtml sunova koers

SAFETY DATA SHEET

Webphenolphthalein. Results and Discussion Benzidine gave positive results with most of the vegetable material (Fig. 4). The three stage phenolphthalein test how- ever produced only weak reactions with just four of the substances tested in fresh form. Of more significance was the fact that in the stain form. no false positives were obtained WebJul 20, 2024 · 14.9: Indicators. We mentioned that in most titrations it is necessary to add an indicator which produces a sudden color change at the equivalence point. A typical indicator for acid-base titrations is phenolphthalein, HC 20 H 13 O 4. Phenolphthalein, whose structure is shown below, is a colorless weak acid ( Ka = 3 × 10 –10 mol/L). WebNov 8, 2013 · Phenolphthalein is available in the following doses: Cascara Sagrada-phenolphthalein 50 Mg-32.4 Mg Oral Tablet; Docusate-phenolphthalein 100 Mg-65 Mg … sunova nz