System to describe the chemical formulas for WEB.

Eosin Y

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Eosin Y

Molecular formula: C20H6Br4Na2O5 CAS# 15086-94-9
Categories: Organobromides , Dye , Organic salt
Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2)(CAS)
C.I. Acid Red 87
C.I. Solvent Red 43
D & C Red no. 21
Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate(IUPAC)
Eosin Y [Wiki]
Eosine G
Eosine Yellowish
Eosine Yellowish-(YS)
eosine acid


Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent