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8.41535

Sigma-Aldrich

4-Aminonaphthalene-1-sulfonic acid

for synthesis

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Synonym(s):
4-Aminonaphthalene-1-sulfonic acid, 1-Naphthylamine-4-sulfonic acid, Naphthionic acid
Empirical Formula (Hill Notation):
C10H9NO3S
CAS Number:
Molecular Weight:
223.25
MDL number:
UNSPSC Code:
12352106
EC Index Number:
201-567-9
NACRES:
NA.22

Quality Level

Assay

≥97.0% (acidimetric)

form

powder

mp

240-241 °C

density

1.67 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

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

InChI key

NRZRRZAVMCAKEP-UHFFFAOYSA-N

Related Categories

Analysis Note

Assay (acidimetric): ≥ 97.0 %
Identity (IR): passes test

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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