Agent Name

N-Phenylsulfanilic acid, sodium salt

CAS Number

6152-67-6

Formula

C12-H11-N-O3-S.Na

Major Category

Nitrogen Compounds

Synonyms

Benzenesulfonic acid, 4-(phenylamino)-, monosodium salt; Benzenesulfonic acid, 4-(phenylamino)-, sodium salt (1:1); Sodium N-phenylsulphanilate; Sulfanilic acid, N-phenyl-, sodium salt (8CI); Sodium diphenylamine-4-sulfonate; [ChemIDplus]

Category

Aminobenzenesulfonic Acids

Description

Off-white powder; [Alfa Aesar MSDS]

Sources/Uses

Used in the colorimetric determination of nitrates and as an oxidation-reduction indicator; [Merck Index]

Comments

A skin and strong eye irritant; May induce methemoglobinemia; [Alfa Aesar MSDS] See "N-Phenylsulfanilic acid."

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

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