Active ingredientPhenolphthaleinCat. No. P-P080-001CAS 77-09-8Family · Pharmaceutical analytical standards
Phenolphthalein
A dye of the phthalein family discovered in 1871 by Adolf von Baeyer: colourless in acid, it turns pink to fuchsia in alkaline solutions and is the classic indicator for titrations. For much of the 20th century it was also used as a laxative. This family brings together the active ingredient and other impurities.
Did you know?Its laxative effect was discovered by chance in 1900, when the Hungarian government tried adding it to white wine as a marker: the taste did not change, but drinkers soon noticed.
Go to the active ingredient →Active ingredientPhenolphthaleinCat. No. P-P080-001CAS 77-09-8
ImpurityPhenolphthalein Diphosphate Tetrasodium SaltCat. No. P-P080-002CAS 68807-90-9No product matches your search.
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