eosin y cas 17372-87-1

Description

Eosin Y quick Details

Chemical Name: Eosin Y

CAS No: 17372-87-1

Molecular Formula: C20H6Br4Na2O5

Molecular Weight: 691.85

Eosin YStructure:

Eosin Y typical Properties

Item	Specifications
Maximum absorption wavelength, nm	510.0～518.0
Mass absorption coefficient，L/cm·g	≥115.0
Sensitivity test	qualified
Water dissolution test	qualified
Loss on drying	≤9.0
Halide (in terms of bromine)	≤2.0

Eosin YUsage

Used as a biological stain. Also used as an adsorption indicator for precipitation titration determination of Br-, I-, SCN-, MoO, Ag , and the like. Used as a color developer for the determination of Ag , Pb2 , Mn2 , Zn2 , etc. by fluorescence spectrophotometry.

Eosin YPackaging and Shipping

Packing: Bag or drum

Delivery: Sea or air

Eosin Y Storage

Cool and seated, protect from light.