Skip to Content
Merck
CN
All Photos(3)

Documents

Safety Information

251917

Sigma-Aldrich

Sulfanilic acid

ACS reagent, 99%

Synonym(s):

4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
4-(H2N)C6H4SO3H
CAS Number:
121-57-3
Molecular Weight:
173.19
Beilstein:
908765
EC Number:
204-482-5
MDL number:
MFCD00007886
UNSPSC Code:
12352100
PubChem Substance ID:
24855168
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

98.0-102.0% (ACS specification)
99%

form

powder

ign. residue

≤0.01%

mp

>300 °C (lit.)

anion traces

chloride (Cl-): ≤0.002%
nitrite (NO2-): ≤0.5 ppm
sulfate (SO42-): ≤0.01%

SMILES string

Nc1ccc(cc1)S(O)(=O)=O

InChI

1S/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)

InChI key

HVBSAKJJOYLTQU-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

The diazonium salt of sulfanilic acid may be used in the preparation of azo dyes such as o-anisaldehyde, orange I and orange II. It may also be used in the preparation of 2,6-dibromoaniline via bromination followed by desulfonation.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H317,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

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

Visit the Document Library

2,6-DICHLOROANILINE AND 2,6-DIBROMOANILINE
Seikel MK
Organic Syntheses, 24, 47-47 (1944)
1,2-AMINONAPHTHOL HYDROCHLORIDE
Conant JB, et al
Organic Syntheses, 17, 9-9 (1937)
o-ANISALDEHYDE
Sisti AJ
Organic Syntheses, 44, 4-4 (1964)
Adsorption of essential micronutrients by carbon nanotubes and the implications for nanotoxicity testing.
Lin Guo et al.
Small (Weinheim an der Bergstrasse, Germany), 4(6), 721-727 (2008-05-28)
Reversible tuning of SERS hot spots with aptamers.
Nam Hoon Kim et al.
Advanced materials (Deerfield Beach, Fla.), 23(36), 4152-4156 (2011-08-09)
View All Related Papers

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