| Identification | More | [Name]
Metanilic acid | [CAS]
121-47-1 | [Synonyms]
3-AMINOBENZENESULFONIC ACID
3-SULFOANILINE
ANILINE-3-SULFONIC ACID
ANILINE-M-SULFONIC ACID
M-AMINOBENZENESULFONIC ACID
M-ANILINESULFONIC ACID
METANILIC ACID
M-SULFANILIC ACID
M-SULFOANILINE
1-Aminobenzene-3-sulfonic acid
1-aminobenzene-3-sulfonicacid
3-Aminobenzene sulphonic acid
3-amino-benzenesulfonicaci
Aminobenzenesulfonic acid
aminobenzenesulfonicacid
Benzenesulfonic acid, 3-amino-
benzenesulfonicacid,3-amino
Benzenesulfonicacid,3-amino-
Kyselina anilin-3-sulfonova
Kyselina metanilova | [EINECS(EC#)]
204-473-6 | [Molecular Formula]
C6H7NO3S | [MDL Number]
MFCD00065345 | [Molecular Weight]
173.19 | [MOL File]
121-47-1.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [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 | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents, acids. | [Water Solubility ]
slightly soluble | [Merck ]
14,5927 | [BRN ]
473264 | [InChI]
1S/C6H7NO3S/c7-5-2-1-3-6(4-5)11(8,9)10/h1-4H,7H2,(H,8,9,10) | [InChIKey]
ZAJAQTYSTDTMCU-UHFFFAOYSA-N | [SMILES]
Nc1cccc(c1)S(O)(=O)=O | [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]
121-47-1(EPA Substance) |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H302+H312+H332 | [Precautionary statements ]
P261-P264-P280-P301+P312-P302+P352+P312-P304+P340+P312 | [Hazard Codes ]
Xn | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S25:Avoid contact with eyes . | [RIDADR ]
3261 | [WGK Germany ]
1
| [RTECS ]
OY2300000
| [TSCA ]
Yes | [REACH Registrations]
Active | [HazardClass ]
IRRITANT | [HS Code ]
29214200 | [Storage Class]
13 - Non Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Hydrochloric acid-->Sulfuric acid-->Sodium carbonate-->Fuming sulfuric acid-->Iron-->Nitrobenzene-->Nicotinic acid-->Congo red paper-->Sulfur trioxide-->Sodium 3-nitrobenzenesulphonate-->Benzenesulfonic acid sodium salt-->METANILIC ACID SODIUM SALT | [Preparation Products]
3-Aminophenol-->1-Aminoanthraquinone-->3-ACETYLAMINO-BENZENESULFONYL CHLORIDE-->REACTIVE BLUE 4-->ACID BLUE 113-->ACID BLUE 120-->2-Amino-1,4-benzenedisulfonic acid-->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-->cleaner LS-->Reactive Blue 198-->Reactive Orange 5-->Mordant Brown 33-->SIRIUS YELLOW GC-->disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate-->REACTIVE BLUE 5-->Direct Blue 106-->Acid Orange 116-->Reactive Brilliant Orange K-R-->Tracid Rubine 5bl-->Reactive Blue 49-->Reactive Brilliant Orange K-7R-->METANIL YELLOW-->tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-)-->Reactive Orange 2-->Reactive Navy Blue Ker-->REACTIVE RED 198-->tetraammonium [mu-[[5,5'-[carbonylbis[imino(2-hydroxy-5-sulpho-p-phenylene)azo]]bis[6-hydroxynaphthalene-2-sulphonato]](8-)]]dicuprate(4-) |
| Hazard Information | Back Directory | [General Description]
White powder. Small colorless needles; toxic. | [Reactivity Profile]
3-AMINOBENZENE SULFONIC ACID(121-47-1) is an amino acid. Reacts weakly with both acids and bases. | [Air & Water Reactions]
Water insoluble [Hawley]. | [Hazard]
See aniline. | [Fire Hazard]
Flash point data for this chemical are not available, however 3-AMINOBENZENE SULFONIC ACID is probably combustible. | [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.
| [Flammability and Explosibility]
Nonflammable | [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.] |
|
| Company Name: |
J & K SCIENTIFIC LTD.
|
| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
Alfa Aesar
|
| Telephone: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
|
| Telephone: |
400-0056266 |
| Website: |
www.energy-chemical.com |
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