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Is this the chemical described at RED , as first chemical ?

Aldrich Chromotrope FB
Dye content 50 %
Price and Availability 62 dollarsProduct
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Synonym: Acid Red 14, Mordant Blue 79, Disodium 4-hydroxy-3-[(4-sulfo-1-naphthalenyl)azo]-1-naphthalenesulfonate
CAS Number: 3567-69-9
Empirical Formula (Hill Notation): C20H12N2Na2O7S2
Molecular Weight: 502.43
Colour Index Number: 14720
EC Number: 222-657-4
MDL number: MFCD00003978
PubChem Substance ID: 24852839