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86090

Sigma-Aldrich

Sulfanilic acid

puriss. p.a., ≥99.0% (T)

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Synonym(s):
4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
Linear Formula:
4-(H2N)C6H4SO3H
CAS Number:
Molecular Weight:
173.19
Beilstein:
908765
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

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

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

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This Item
PHR14191.006841.00686
Sulfanilic acid puriss. p.a., ≥99.0% (T)

Sigma-Aldrich

86090

Sulfanilic acid

Sulfanilic Acid Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1419

Sulfanilic Acid

Supelco

Supelco

1.00684

Sulfanilic acid

Sulfanilic acid GR for analysis ACS,Reag. Ph Eur

Supelco

1.00686

Sulfanilic acid

assay

≥99.0% (T)

assay

-

assay

-

assay

≥99.0-102.0% (acidimetric)

form

powder or crystals

form

-

form

solid

form

solid

impurities

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

impurities

-

impurities

-

impurities

-

mp

>300 °C (lit.)

mp

>300 °C (lit.)

mp

288 °C (decomposes)

mp

288 °C (decomposes)

anion traces

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

anion traces

-

anion traces

-

anion traces

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

Application

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Storage Class Code

13 - Non 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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