High Quality Phenolphthalein CAS 77-09-8

• Function: Vitamins and Minerals Deficiency Drug
• Grade Standard: Medicine Grade
• Type: Chemical Reagent
• State: Powder
• Volatile: Not Volatile
• CAS: CAS 77-09-8
• Model NO.: py0451
• Mf.: C20h14o4
• MOQ: 1kg
• Package: Carton
• Transport Package: 25kg/Drum
• Specification: 99%
• Trademark: puya
• Origin: China
• Production Capacity: 20ton/Year

Product Description

Phenolphthalein CAS 77-09-8

Synonyms   2-[Bis(4-hydroxyphenyl)methyl]benzoic acid; 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; 3,3-Bis(4-hydroxyphenyl)phthalide
Molecular Formula C₂₀H₁₄O₄
Molecular Weight  318.33
CAS Number 77-09-8
EINECS/ELINCS 201-004-7
Appearance    white powder
Melting Point   258-263ºC
Density        1.299 g/cm³
Solubility       <0.1 g/100ml
Stability        stable under ordinary conditions

Specification

Items	Specifications
Characteristics	A white or almost white powder, practically insoluble in water, soluble in alcohol
Melting Point	it melts at about 260ºC
Identification	A:positive B:positive
Appearance Of Solution	The solution is clear and not more intensely coloured than reference solution Y7
Related Substances	0.5% max
Heavy Metals	0.001% max
Acidity Or Alkalinity	complies
Chlorides	0.01% max
Sulphates	0.02% max
Loss On Drying	0.5% max
Sulphated Ash	0.1% max
Assay	98.0-101.0%(c20h14o4)
Microorganism	tpc<1000cfu/g
	y and m <100cfu/g
	e.coli: absent
	staphylcoccus aureus: absent

Application
Phenolphthalein is one of the most widely used indicators.  Phenolphthalein is used as a laxative to treat incomplete and infrequent bowel movement.
Phenolphthalein also is used in automotive and aviation industries.