Phenolphthalein Cas 77-09-8

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Phenolphthalein Cas 77-09-8

Chemical Name: Phenolphthalein
CAS No.: 77-09-8
Molecular Formula: C20H14O4
Molecular Weight: 318.32
Assay: 98%-101%
Samples: Available

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Typical Properties

Specifications

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

Usage

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

Packaging and Shipping