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phenolphthalein cas 77-09-8

Assay: 98%-101%

Appearance: White cyrstalline powder

Capacity: 30 tons per month

Packaging: 25kg/fiber drum

Sample: available



Phenolphthalein Quick Details

Chemical Name: Phenolphthalein

CAS No.: 77-09-8

Molecular Fomula: C20H14O4

Chemical Structure:Phenolphthalein Structure

Molecular weight: 318.32

Appearance: A white powder, practically insoluble in water, soluble in alcohol.

Assay: 98.0%-101.0%(C2OHi4O4)

Phenolphthalein Typical Properties

Item Specifications
Characteristics A white or almost white powder, practically insoluble in water, soluble in alcohol.
Melting Point It melts at about 260℃
Identification A:Positive B:Positive
Appearance of solution The solution is clear and not more intensely coloured than reference solution Y7
Related substances Less than 0.5%
Heavy metals Not more than0.001%
Acidity or alkalinity Complies
Chlorides Not more than 0.01%
Sulphates Not more than 0.02%
Loss on drying Not more than 0.5%
Sulphated ash Not more than 0.1%
Assay 98.0%-101.0%(C2OHi4O4)
Microorganism TPC<1000cfu/g
Y and M <100cfu/g
E-coli – absent
Staphylococcus Aureus-Absent
Pseudomonas Aeruginosa-Absent
Albicans Saccharomyces-Absent

Phenolphthalein Usage

(1) This product is a commonly used acid indicator, and the color change range is pH 8.2 (colorless) -10.0 (red). Phenolphthalein is also a drug that acts as a laxative in the colon and is used to treat constipation.

(2) Acid-base indicator, non-aqueous titration indicator, chromatographic reagent.

PhenolphthaleinPackaging and Shipping

Fiber Drum,25kg


Store in a cool, dry place.