Metanilic acid
CAS No.
121-47-1
Chemical Name:
Metanilic acid
Synonyms
metanilic;Metanilsure;Metanilc Acid;Aniline-3-sulf;M-SULFOANILINE;METANILIC ACID;3-SULFOANILINE;m-Sulfanioicacid;M-SULFANILIC ACID;kyselinametanilova
CBNumber:
CB7143612
Molecular Formula:
C6H7NO3S
Formula Weight:
173.19
MOL File:
121-47-1.mol
Metanilic acid 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.)
form
Powder
pka
3.73(at 25℃)
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
Benzenesulfonic acid, 3-amino-(121-47-1)
SAFETY
Risk and Safety Statements
Hazard and Precautionary Statements (GHS)
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
Symbol(GHS):
Signal word:
Warning
Hazard statements:
Code
Hazard statements
Hazard class
Category
Signal word
Pictogram
P-Codes
H302 Harmful if swallowed
Acute toxicity,oral
Category 4
Warning
P264, P270, P301+P312, P330, P501
H312 Harmful in contact with skin
Acute toxicity,dermal
Category 4
Warning
P280,P302+P352, P312, P322, P363,P501
H320 Causes eye irritation
Serious eye damage/eye irritation
Category 2B
Warning
P264, P305+P351+P338,P337+P313
H332 Harmful if inhaled
Acute toxicity,inhalation
Category 4
Warning
P261, P271, P304+P340, P312
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P501 Dispose of contents/container to..…
Manufacturer
Product number
Product description
CAS number
Packaging
Price
Updated
Buy
Sigma-Aldrich
165794
3-Aminobenzenesulfonic acid
97%
121-47-1
250g
$44.5 2018-11-13
Buy
TCI Chemical
A0265
3-Aminobenzenesulfonic Acid >99.0%(T)
121-47-1
25g
$14 2017-11-08
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TCI Chemical
A0265
3-Aminobenzenesulfonic Acid >99.0%(T)
121-47-1
500g
$64 2017-11-08
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Alfa Aesar
A14574
Metanilic acid, 98+%
121-47-1
100g
$20.9 2018-11-13
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Alfa Aesar
A14574
Metanilic acid, 98+%
121-47-1
250g
$50.6 2017-11-08
Buy
Metanilic acid Chemical Properties,Uses,Production
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.
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.]
Metanilic acid Preparation Products And Raw materials
Raw materials
Preparation Products
cleaner LS
METANIL YELLOW
3-ACETYLAMINO-BENZENESULFONYL CHLORIDE
REACTIVE BLUE 4
Direct Blue 106
Reactive Navy Blue Ker
disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate
Mordant Brown 33
ACID BLUE 113
2-Amino-1,4-benzenedisulfonic acid
Tracid Rubine 5bl
SIRIUS YELLOW GC
Reactive Orange 2
Reactive Orange 5
Reactive Brilliant Orange K-R
REACTIVE BLUE 5
Acid Orange 116
Reactive Blue 49
Reactive Brilliant Orange K-7R
ACID BLUE 120
3-Aminophenol
Benzoic acid, 5-4-4-4-(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino-2-sulfophenylamino-6-(phenylamino)-1,3,5-triazin-2-ylaminophenylazo-2-hydroxy-, trisodium salt
REACTIVE RED 198
1-Amino anthraquinone
Reactive Blue 198
tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-)
tetraammonium [mu-[[5,5'-[carbonylbis[imino(2-hydroxy-5-sulpho-p-phenylene)azo]]bis[6-hydroxynaphthalene-2-sulphonato]](8-)]]dicuprate(4-)
Metanilic acid Suppliers
Global( 174)Suppliers
Belgium 1
China 111
China Hong Kong 1
Czech Republic 1
Europe 5
Germany 6
India 4
Japan 5
Slovakia 1
South Korea 1
Switzerland 2
United Kingdom 6
United States 30
Global 174
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Sulfonic/Sulfinic Acids
Sulfur Compounds
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1-aminobenzene-3-sulfonicacid
3-Aminobenzene sulphonic acid
3-amino-benzenesulfonicaci
Aminobenzenesulfonic acid
aminobenzenesulfonicacid
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benzenesulfonicacid,3-amino
Benzenesulfonicacid,3-amino-
Kyselina anilin-3-sulfonova
Kyselina metanilova
kyselinaanilin-3-sulfonova
kyselinametanilova
metanilic
m-Sulfanioicacid
M-AMINOBENZENESULFONIC ACID
M-ANILINESULFONIC ACID
METANILIC ACID
ANILINE-M-SULFONIC ACID
ANILINE-3-SULFONIC ACID
3-SULFOANILINE
