S P E C I F I C A T I O N S

EOSIN Y DISODIUM SALT CERTIFIED

Synonyms:					Acid Red 87; C.I. 45380;  
						2’4’5’7’-Tetrabromofluorescein, disodium salt

CAS No.:					17372-87-1

Chemical Formula:				C20H6Br4Na2O5

Formula Weight:				691.85

Description:					Dark red-brown (rust) powder

Identification (IR):				To conform to standard

Assay:						> 88%

Solubility:					Clear, yellow-orange to red solution
(0.25%,  in water)

Loss on drying:				< 5%

Certification:				To be certified by the BIOLOGICAL STAINS COMMISSION

Effective: 01/20/18