Skip to Content
Merck
All Photos(1)

Key Documents

01-3910

Sigma-Aldrich

4-Amino-3-hydroxy-1-naphthalenesulfonic acid

JIS special grade, ≥97.0%

Synonym(s):

1-Amino-2-naphthol-4-sulfonic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
H2NC10H5(OH)SO3H
CAS Number:
Molecular Weight:
239.25
Beilstein:
2697469
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:

grade

JIS special grade

Assay

≥97.0%

availability

available only in Japan

mp

290 °C (dec.) (lit.)

SMILES string

Nc1c(O)cc(c2ccccc12)S(O)(=O)=O

InChI

1S/C10H9NO4S/c11-10-7-4-2-1-3-6(7)9(5-8(10)12)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)

InChI key

RXCMFQDTWCCLBL-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service