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Eriochrome Red B

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Eriochrome Red B

Molecular formula: C20H15N4NaO5S CAS# 3618-63-1
Categories: Azo compound , Aromatic hydrocarbon , Heterocyclic compound , Complexometric indicator , Organic salt
PubChem CID: 23702481 | ChemSpider ID: 10483793 | CB4774020 | MolPort-001-819-455
Names
English:
1-Naphthalenesulfonic acid, 3-hydroxy-4-[(E)-2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-, sodium salt (1:1)(CAS)
ACID RED 195
C.I. 18760
EINECS:222-811-0
ERB
Eriochrome Red B
Mordant Red 7
Sodium 3-hydroxy-4-[(E)-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-1-naphthalenesulfonate(IUPAC)
Sodium 3-hydroxy-4-[(E)-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]naphthalene-1-sulfonate
W038OX77W2
[3618-63-1]

Variants of the formula:

N`|N<_(a-54)_q6_pp6_p6_pp6_p6_pp6>_p<_(a-54)OH>_pp<_p<_(a-54)>_pp>-N//N-/`\//-\\`/\`/`=<`/HO>`\/-\-S<`||O><||O>-O^-/0Na^+
NH_(x-1)N<_(a54)_q6_pp6_p6_pp6_p6_pp6>_q<_(a54,N2)O>_q<_qq<_q>_(a54)>|HN\N||\//\||`/`\\<`|>`/<`\\`|`\O\/>|S<_qq4O><_pp4O>|O`^-\0Na^+
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent