251917
Sulfanilic acid
ACS reagent grade, 99%, powder
Synonym(s):
4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
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About This Item
Linear Formula:
4-(H2N)C6H4SO3H
CAS Number:
Molecular Weight:
173.19
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
204-482-5
MDL number:
Beilstein/REAXYS Number:
908765
Assay:
98.0-102.0% (ACS specification), 99%
Form:
powder
Product Name
Sulfanilic acid, ACS reagent, 99%
grade
ACS reagent
Quality Level
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%
functional group
sulfonic acid
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
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.
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signalword
Warning
hcodes
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
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o-ANISALDEHYDE
Sisti AJ
Organic Syntheses, 44, 4-4 (1964)
1,2-AMINONAPHTHOL HYDROCHLORIDE
Conant JB, et al
Organic Syntheses, 17, 9-9 (1937)
2,6-DICHLOROANILINE AND 2,6-DIBROMOANILINE
Seikel MK
Organic Syntheses, 24, 47-47 (1944)