Methyl 2-(chorosulfonyl)benzoate
Methyl 2-(chlorosulfonyl)benzoate
CAS: 26638-43-7
Molecular Formula: C8H7ClO4S
Methyl 2-(chorosulfonyl)benzoate - Names and Identifiers
Methyl 2-(chorosulfonyl)benzoate - Physico-chemical Properties
| Molecular Formula | C8H7ClO4S |
| Molar Mass | 234.66 |
| Density | 1.4452 (estimate) |
| Melting Point | 62-63 °C |
| Boling Point | 344.8±25.0 °C(Predicted) |
| Water Solubility | reacts |
| Appearance | Solid |
| Color | White to beige or pink |
| Storage Condition | Inert atmosphere,2-8°C |
| Sensitive | Moisture Sensitive |
| MDL | MFCD00009797 |
| Physical and Chemical Properties | The melting point of the commercially available product was 59-64 °c (90% technical grade). |
Methyl 2-(chorosulfonyl)benzoate - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R29 - Contact with water liberates toxic gas R14 - Reacts violently with water |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S30 - Never add water to this product. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S22 - Do not breathe dust. |
| UN IDs | 3261 |
| TSCA | Yes |
| HS Code | 29163990 |
| Hazard Note | Corrosive |
| Hazard Class | 8 |
| Packing Group | III |
Methyl 2-(chorosulfonyl)benzoate - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | this product is an intermediate of saccharin sodium. |
| Production method | It is obtained by diazotization, replacement and chlorination of methyl anthranilate. After mixing methyl anthranilate and sodium nitrite solution evenly, drop it into the mixed solution of sulfuric acid and hydrochloric acid at about 10 ℃, control the temperature not to exceed 25 ℃, and stir until the potassium iodide starch solution is light purple. The diazo is liquid cooled to 10 ℃, copper sulfate is added, and sulfur dioxide is introduced after all dissolution. The temperature is about 24 ℃, and methyl orthosulfonic acid benzoate is precipitated for about 1h. After 3h, the test with H acid test paper should be colorless as the replacement end point. Toluene was added and chlorinated at 30-35 ℃ to the end point (2% benzidine ethanol test solution showed dark dark green). Let it stand and divide the organic layer to obtain a toluene solution of o-sulfonyl chlorobenzoate, which is the finished product after desolution. |
Last Update：2024-04-09 02:00:07
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View History
Methyl 2-(chorosulfonyl)benzoate
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tert-butyl 3-(trifluoroMethyl)-5,6,7,8-tetrahydro-1,6-naphthyridine-6-carboxylate
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Ethyl alpha-methylacetoacetate
3-Amino-1-(propan-2-yl)-1,2-dihydropyridin-2-one
(S)-4-FLUORO-L-PROLINE
24309-22-6
(1S)-1,2,3,4-Tetrahydro-7-hydroxy-1α-(4-hydroxy-3-methoxyphenyl)-6-methoxy-2β,3α-naphthalenedimethanol
tert-butyl 3-(trifluoroMethyl)-5,6,7,8-tetrahydro-1,6-naphthyridine-6-carboxylate
Ilidine
Imidazo[2,1-b][1,3]thiazol-6-ylmethanamine Dihydrochloride
755039-54-4
Ethyl alpha-methylacetoacetate
3-Amino-1-(propan-2-yl)-1,2-dihydropyridin-2-one
(S)-4-FLUORO-L-PROLINE