Metanilic acid

ChemicalBook > CAS DataBase List > Metanilic acid

Product Name: Metanilic acid
CAS No.: 121-47-1
Chemical Name: Metanilic acid
Synonyms: 3-AMINOBENZENESULFONIC ACID;phenylsulfamic acid;3-SULFOANILINE;ANILINE-3-SULFONIC ACID;aminobenzenesulfonicacid;metanilic;Metanilsure;Metanilc Acid;METANILIC ACID;Aniline-3-sulf
CBNumber: CB7143612
Molecular Formula: C6H7NO3S
Formula Weight: 173.19
MOL File: 121-47-1.mol

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Metanilic acid Property

Melting point:: >300 °C (lit.)
Density: 1.69
refractive index: 1.5500 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
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.
LogP: -2.77 at 21℃
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

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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 165794
Product name: 3-Aminobenzenesulfonic acid
Purity: 97%
Packaging: 250g
Price: $92.4
Updated: 2024/03/01

TCI Chemical

Product number: A0265
Product name: 3-Aminobenzenesulfonic Acid
Purity: >99.0%(T)
Packaging: 25g
Price: $21
Updated: 2024/03/01

TCI Chemical

Product number: A0265
Product name: 3-Aminobenzenesulfonic Acid
Purity: >99.0%(T)
Packaging: 500g
Price: $92
Updated: 2024/03/01

Alfa Aesar

Product number: A14574
Product name: Metanilic acid, 98+%
Packaging: 100g
Price: $20.9
Updated: 2021/12/16

TRC

Product number: A591695
Product name: 3-Aminobenzenesulfonic acid
Packaging: 25g
Price: $45
Updated: 2021/12/16

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Metanilic acid Chemical Properties,Usage,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.

Uses

Metanilic 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. It undergoes microbial desulfonation to 3-aminophenol by Pseudomonas sp. strain S-313. It can be used to produce CN3O6(1-)*Cs(1+) and dicesium salt of N-nitrometanilic acid at temperature of 25°C.

Definition

ChEBI: 3-aminobenzenesulfonic acid is an aminobenzenesulfonic acid. It is a conjugate acid of a 3-aminobenzenesulfonate.

Production Methods

Metanilic acid can be obtained by sulfonation of aniline sulfate with oleum and boric acid at 20 – 50 ℃. The yield is 98%. For industrial production, however, nitrobenzene is sulfonated to m-nitrobenzenesulfonic acid, which is then reduced either with iron or catalytically with hydrogen. Crude 3-aminobenzenesulfonic acid can be used directly, either as a solution or dried, to obtain 3-aminophenol by alkali fusion. It is not sufficiently pure for use in dye manufacture, however. Therefore the crude solution is acidified; after filtration the product thus obtained is of satisfactory purity.

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.

Flammability and Explosibility

Non flammable

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

Nicotinic acid FUMING SULFURIC ACID Iron filings Congo red paper Iron mud Sodium 3-nitrobenzenesulphonate Benzenesulfonic acid sodium salt Sulfur trioxide METANILIC ACID SODIUM SALT Light red Hydrochloric acid Nitrobenzene Iron Sulfuric acid Sodium carbonate

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-Aminoanthraquinone 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-)

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View Lastest Price from Metanilic acid manufacturers

hebei hongtan Biotechnology Co., Ltd

Product: Metanilic acid 121-47-1
Price: US $30.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 2000kg
Release date: 2024-03-25

WUHAN FORTUNA CHEMICAL CO., LTD

Product: Metanilic acid 121-47-1
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98%min
Supply Ability: 30tons/month
Release date: 2023-01-10

Hebei Mojin Biotechnology Co., Ltd

Product: Metanilic acid 121-47-1
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-10-20

121-47-1, Metanilic acidRelated Search:

Folic acid Stearic acid m-Anisidine Citric acid Ethyl 2-(Chlorosulfonyl)acetate 3-Ethynylaniline Hyaluronic acid Aniline-2-sulfonic acid Ascoric Acid Sulfanilic acid Sodium 2-aminosulphanilate ACID ORANGE 74 ACID RED 183 ACID BLUE 25 Acid Yellow 42 ACID BLUE 41 ACID BLUE 80 Mordant Red 19

3-AMINOBENZENESULFONIC ACID

3-amino-benzenesulfonicaci

Aminobenzenesulfonic acid

aminobenzenesulfonicacid

Benzenesulfonic acid, 3-amino-

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

metanilic acid 77%

3-AminobenzenesuL

METANILIC ACID, 98+%

MetanilicAcidPurified

META-SULPHANILICACID

Metanilsure

phenylsulfamic acid

3-AMINOBENZENESULPHONIC ACID / METANILIC ACID

METANILIC ACID pract

m-Aminophenylsulfonic acid

Metanilc Acid

Metanilic acid, 98% 100GR

m-Anilinesulfonic Acid Metanilic Acid 3-Sulfoaniline

3-AMinobenzenesulfonic acid, 98%+

Aniline-3-sulf

M-SULFANILIC ACID

M-SULFOANILINE

1-Aminobenzene-3-sulfonic acid for synthesis

1-Aminobenzene-3-sulfonic acid

1-aminobenzene-3-sulfonicacid

3-Aminobenzene sulphonic acid

3-AminobenzenesulfonicAcid&gt

Metanilic acid ISO 9001：2015 REACH

Metanilic Acid pure, 98%

METANILIC ACID Extra Pure

Neostigmine Impurity 9

METANILIC ACID (META AMINO BENZENE SULPHONIC ACID)

3-Aminobenzenesulfonic Acid, ≥ 99.0%

121-47-1

C6H7N5O3S

C6H5NHSO3H

Organic Building Blocks

Sulfonic/Sulfinic Acids

Sulfur Compounds

SULFONIC ACID

Building Blocks

Intermediates of Dyes and Pigments

INORGANIC & ORGANIC CHEMICALS