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291137

Sigma-Aldrich

2-Amino-1-naphthalenesulfonic acid

98%

Synonym(s):

2-Naphthylamine-1-sulfonic acid, Tobias acid

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About This Item

Linear Formula:
H2NC10H6SO3H
CAS Number:
Molecular Weight:
223.25
Beilstein:
613084
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

solid

SMILES string

Nc1ccc2ccccc2c1S(O)(=O)=O

InChI

1S/C10H9NO3S/c11-9-6-5-7-3-1-2-4-8(7)10(9)15(12,13)14/h1-6H,11H2,(H,12,13,14)

InChI key

GWIAAIUASRVOIA-UHFFFAOYSA-N

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General description

2-Amino-1-naphthalenesulfonic acid is a manufacturing intermediate in the monosulfo monoazo color additive D&C Red No. 34 and its lakes.

Application

2-Amino-1-naphthalenesulfonic acid has been used in the preparation of 2-(2-naphthylamino)benzoxazole by reacting with 2-chlorobenzoxazole.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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