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Acid Orange 20

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Acid Orange 20

Molecular formula: C16H11N2NaO4S CAS# 523-44-4
7.68.9 pH
Names
English:
4-(p-Sulfophenylazo)-1-naphthol, monosodium salt
4-[(4-Hydroxy-1-naphthalenyl)azo]benzenesulfonic Acid Monosodium Salt
Acid Orange 20
Benzenesulfonic acid, 4-[(E)-2-(4-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)(CAS)
Benzenesulfonic acid, p-[(4-hydroxy-1-naphthyl)azo]-, sodium salt
EINECS:208-346-6
Ext. D & C Orange 3
FD & C Orange I
Orange 1 [Wiki]
Orange yellow I
Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate(IUPAC)
Sodium Azo-a-naphtholsulfanilate
Sodium azo-α-naphtholsulfanilate
W9Q9OB858O
[523-44-4]
a-Naphthol Orange
sodium 4-[(E)-(4-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
α-Naphthol Orange

Variants of the formula:

Na^+\0O`^-# -S<`||O><||O>-//-\\<`/`=`\>-N//N-/`\//-\\`/\`/`=`\/-\-OH
/\\/`||`\`//<|>`\`|O|`/||\||N`/HN|\||`/<`\\`|//>|S<_qq4O><_pp4O>|O^-\0Na^+
Na^+_(x1.6,N0)O`^-\S<_(A60,N2)O><_(A120,N2)O>/\\/`||<`\`//|>/N\\N/\|\\/`||`\`|`\`//|\/`|/OH
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent