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Ponceau 6R

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Ponceau 6R

Molecular formula: C20H12N2Na2O7S2 CAS# 2766-77-0
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(1-naphthalenylazo)-, disodium salt (9CI)
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[(E)-2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2)(CAS)
Acid Leather Ponceau 6R
Acid Ponceau 6R
Acid Red 44
Acid Red 6A
Brilliant crystal scarlet 6R
C.I. 16250
C.I. Acid Red 44
Colacid Red 6A
Crystal Ponceau M6R
Crystal ponceau 6R
Crystal scarlet
Disodium 7-hydroxy-8-[(E)-1-naphthyldiazenyl]-1,3-naphthalenedisulfonate(IUPAC)
Disodium 7-hydroxy-8-[(E)-1-naphthyldiazenyl]naphthalene-1,3-disulfonate
E 126
Ponceau 6R [Wiki]
disodium 7-hydroxy-8-[(E)-naphthalen-1-yldiazenyl]naphthalene-1,3-disulfonate

Variants of the formula:

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