2,2′,4,4′-tetrahydroxybenzophenone cas 131-55-5

描述

2,2′,4,4′-Tetrahydroxybenzophenonequick Details

Chemical Name:2,2′,4,4′-Tetrahydroxybenzophenone

CAS No.: 131-55-5

Molecular Formula: C13H10O5

Chemical Structure:

Molecular weight:246.22

Appearance:Palegreenish yellow crystalline powder

Assay: 99.0%min

2,2′,4,4′-Tetrahydroxybenzophenonetypical Properties

Item	Specifications
Appearance	Palegreenish yellow crystalline powder
Purity	99.0%min
Melting Point	195.0-203.0℃
Loss on drying	0.5% max
Heavy metals (Pb)	5ppm max
Spefic Extinction (1%,1cm)(345nm)	580min
Gardner color	3.0max

2,2′,4,4′-Tetrahydroxybenzophenoneusage

1.Cosmetic UV protection additives

2.Pharmaceutical intermediates

3.Photographic materials

2,2′,4,4′-TetrahydroxybenzophenonePackaging and Shipping

Packing: 20kg/carton

Delivery: Non-dangerous goods

2,2′,4,4′-Tetrahydroxybenzophenonestorage

Stable for at least 2 years at 20°C in a sealed container in the dark.