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Metanilic acid

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Metanilic acid Basic information

Product Name:
Metanilic acid
CAS:
121-47-1
MF:
C6H7NO3S
MW:
173.19
EINECS:
204-473-6
Mol File:
121-47-1.mol
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Metanilic acid Chemical Properties

Melting point:
>300 °C(lit.)
Density 
1.69
refractive index 
1.5500 (estimate)
storage temp. 
Store below +30°C.
solubility 
ethanol: very slightly soluble(lit.)
pka
3.73(at 25℃)
form 
Powder
color 
White to grayish-beige
Water Solubility 
slightly soluble
Merck 
14,5927
BRN 
473264
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents, acids.
CAS DataBase Reference
121-47-1(CAS DataBase Reference)
NIST Chemistry Reference
Metanilic acid(121-47-1)
EPA Substance Registry System
Metanilic acid (121-47-1)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
20/21/22
Safety Statements 
23-28-28A-25
RIDADR 
3261
WGK Germany 
1
RTECS 
OY2300000
TSCA 
Yes
HazardClass 
IRRITANT
HS Code 
29214200

MSDS

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Metanilic acid Usage And Synthesis

Chemical Properties

white powder

Uses

3-Aminobenzenesulfonic acid was used in the synthesis of cytocompatible sulfonated polyanilines. It was used in fabrication of novel glucose biosensor having large active surface area and excellent conductivity.

General Description

White powder. Small colorless needles; toxic.

Air & Water Reactions

Water insoluble [Hawley].

Reactivity Profile

Metanilic acid is an amino acid. Reacts weakly with both acids and bases.

Hazard

See aniline.

Fire Hazard

Flash point data for Metanilic acid are not available, however Metanilic acid is probably combustible.

Purification Methods

Crystallise the acid from water (as the hydrate), under CO2 in a semi-darkened room. The solution is photosensitive. Dry it over 90% H2SO4 in a vacuum desiccator. [Beilstein 14 H 688, 14 IV 2640.]

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Jining Kate chemical co. LTD Gold
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133-5547-2190
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J & K SCIENTIFIC LTD.
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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Alfa Aesar
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400-610-6006; 021-67582000
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TCI (Shanghai) Development Co., Ltd.
Tel:
021-67121386 / 800-988-0390
Email:
Sales-CN@TCIchemicals.com
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