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
- Molecular Weight:
- 173.19
- MOL File:
- 121-47-1.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/29 16:45:47
| 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.) |
| 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. |
| 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) |
SAFETY
Risk and Safety Statements
| 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 | 20/21/22 | |||||||||
| Safety Statements | 23-28-28A-25 | |||||||||
| RIDADR | 3261 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | OY2300000 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29214200 | |||||||||
| NFPA 704 |
|
Metanilic acid price More Price(5)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 165794 | 3-Aminobenzenesulfonic acid 97% | 121-47-1 | 250G | ₹6386.75 | 2022-06-14 | Buy |
| TCI Chemicals (India) | A0265 | 3-Aminobenzenesulfonic Acid | 121-47-1 | 25G | ₹2000 | 2022-05-26 | Buy |
| TCI Chemicals (India) | A0265 | 3-Aminobenzenesulfonic Acid | 121-47-1 | 500G | ₹4100 | 2022-05-26 | Buy |
| SRL | 76332 | Metanilic Acid pure, 98% | 121-47-1 | 250Gms | ₹200 | 2022-05-26 | Buy |
| SRL | 76332 | Metanilic Acid pure, 98% | 121-47-1 | 1kg | ₹720 | 2022-05-26 | Buy |
Metanilic acid Chemical Properties,Uses,Production
Chemical Properties
white powder
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.
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.
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
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Shree Ganesh Dye Chem | +91 079-26872726 | Gujarat, India | 97 | 58 | Inquiry |
| CRYSTAL QUINONE PVT LTD | +91-9099918899 +91-9099918899 | Ahmedabad, India | 54 | 58 | Inquiry |
| Sadhana Nitro Chem Ltd | +91-2268663300 +91-2268663300 | Maharashtra, India | 15 | 58 | Inquiry |
| Lion Color | +91-7878052742 +91-7878052742 | Gujarat, India | 25 | 58 | Inquiry |
| Green Vision Life Sciences Pvt Ltd. | +91-2067919200 +91-9404953243 | Maharashtra, India | 30 | 58 | Inquiry |
| Vipul Organics Ltd | +91-2266139999 +91-2266139999 | Maharashtra, India | 277 | 58 | Inquiry |
| Gopinath Chemtech Limited | +91-7926582412 +91-7926582412 | Gujarat, India | 79 | 58 | Inquiry |
| Kinjal Organics Pvt Ltd | +91-9898037418 +91-9898037418 | Gujarat, India | 1 | 58 | Inquiry |
| Anubhav Business Corporation | +91-2228014519 +91-2228014999 | Maharashtra, India | 119 | 58 | Inquiry |
| Santel Industries | +91-7940075559 +91-7926401417 | Gujarat, India | 98 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Shree Ganesh Dye Chem | 58 |
| CRYSTAL QUINONE PVT LTD | 58 |
| Sadhana Nitro Chem Ltd | 58 |
| Lion Color | 58 |
| Green Vision Life Sciences Pvt Ltd. | 58 |
| Vipul Organics Ltd | 58 |
| Gopinath Chemtech Limited | 58 |
| Kinjal Organics Pvt Ltd | 58 |
| Anubhav Business Corporation | 58 |
| Santel Industries | 58 |
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