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Merck
CN

86090

Sulfanilic acid

≥99.0% (T), powder or crystals, purum p.a.

Synonym(s):

4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid

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About This Item

Linear Formula:
4-(H2N)C6H4SO3H
CAS Number:
121-57-3
Molecular Weight:
173.19
NACRES:
NA.21
PubChem Substance ID:
57653079
UNSPSC Code:
12352100
EC Number:
204-482-5
MDL number:
MFCD00007886
Beilstein/REAXYS Number:
908765

Key Documents

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Product Name

Sulfanilic acid, puriss. p.a., ≥99.0% (T)

InChI key

HVBSAKJJOYLTQU-UHFFFAOYSA-N

InChI

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

SMILES string

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

grade

puriss. p.a.

assay

≥99.0% (T)

form

powder or crystals

impurities

≤1% ortho/meta-aminobenzene sulfonic acid (HPLC)

ign. residue

≤0.01% (as SO4)

mp

>300 °C (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg
nitrite (NO2-): ≤0.5 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

functional group

sulfonic acid

Quality Level

200

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Application

Sulfanilic acid may be used for the functionalization of single-walled carbon nanotubes (SWNTs) with aryl sulfonate groups.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCN1902
BCCM5621
BCCM5445
BCCK8777
BCCK7810

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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)
Kinetic, mechanistic and spectral studies for the oxidation of sulfanilic acid by alkaline hexacyanoferrate (III).
Farokhi SA and Nandibewoor ST.
Tetrahedron, 59(38), 7595-7602 (2003)
Starlee Lively et al.
Frontiers in cellular neuroscience, 12, 433-433 (2018-12-14)
Addressing potential sex differences in pre-clinical studies is crucial for developing therapeutic interventions. Although sex differences have been reported in epidemiological studies and from clinical experience, most pre-clinical studies of neuroinflammation use male rodents; however, sexual dimorphisms in microglia might
Brian D Piorek et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(48), 18898-18901 (2007-11-21)
We present a microfluidic technique for sensitive, real-time, optimized detection of airborne water-soluble molecules by surface-enhanced Raman spectroscopy (SERS). The method is based on a free-surface fluidic device in which a pressure-driven liquid microchannel flow is constrained by surface tension.
Prashant Barsing et al.
Bioresource technology, 102(2), 765-771 (2010-09-25)
A novel bacterial consortium (TJ-2) for mineralization of aromatic amines resulting from decolorization of azo dyes was developed. Three bacterial strains were identified as Pseudomonas pseudoalcaligenes (TJ-21,EU072476), Pseudomonas citronellolis (TJ-22,EU072477) and Pseudomonas testosterone (TJ-23,EU072477) by 16S rRNA gene sequence analysis.
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