Benzenesulfonamide, 4-formyl- (9CI)
- CAS No.
- 3240-35-5
- Chemical Name:
- Benzenesulfonamide, 4-formyl- (9CI)
- Synonyms
- Mafenide USP RC A;p-Sulfamoylbenzaldehyde;4-sulfamoylbenzaldehyde;4-methanoylbenzenesulfonamide;benzenesulfonamide, 4-formyl-;4-FORMYLBENZENESULFONAMIDE,95%;Benzenesulfonamide, 4-formyl- (9CI);Mafenide Impurity 1 (Mafenide USP RC A);Mafenide Acetate Impurity 1 (Mafenide USP Related Compound A)
- CBNumber:
- CB11056009
- Molecular Formula:
- C7H7NO3S
- Molecular Weight:
- 185.2
- MDL Number:
- MFCD03196508
- MOL File:
- 3240-35-5.mol
- MSDS File:
- SDS
| Melting point | 118-120 °C |
|---|---|
| Boiling point | 392.7±44.0 °C(Predicted) |
| Density | 1.424±0.06 g/cm3(Predicted) |
| storage temp. | 2-30°C |
| pka | 9.76±0.10(Predicted) |
| Appearance | White to off-white Solid |
| Major Application | pharmaceutical (small molecule) |
| InChI | InChI=1S/C7H7NO3S/c8-12(10,11)7-3-1-6(5-9)2-4-7/h1-5H,(H2,8,10,11) |
| InChIKey | PCPUKVSTMLHXQF-UHFFFAOYSA-N |
| SMILES | C1(S(N)(=O)=O)=CC=C(C=O)C=C1 |
| FDA UNII | 8H09AK2C6C |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H335-H319 |
| Precautionary statements | P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362 |
| HazardClass | IRRITANT |
| HS Code | 2935909550 |
| Storage Class | 11 - Combustible Solids |
Benzenesulfonamide, 4-formyl- (9CI) price More Price(35)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | PHR3032 | Mafenide Related Compound A pharmaceutical secondary standard, certified reference material | 3240-35-5 | 100 mg | $584 | 2026-04-30 | Buy |
| Usbiological | 432064 | 4-Desaminomethyl 4-Formylmafenide | 3240-35-5 | 10mg | $468 | 2026-06-03 | Buy |
| Usbiological | 432064 | 4-Desaminomethyl 4-Formylmafenide | 3240-35-5 | 100mg | $2053 | 2026-06-03 | Buy |
| Activate Scientific | AS146186 | 4-Formylbenzenesulfonamide 95% | 3240-35-5 | 1g | $281 | 2026-06-04 | Buy |
| Activate Scientific | AS146186 | 4-Formylbenzenesulfonamide 95% | 3240-35-5 | 5g | $933 | 2026-06-04 | Buy |
Benzenesulfonamide, 4-formyl- (9CI) Chemical Properties, Uses, Production
Synthesis
mixture of (4-(N-acetamidosulfonyl)phenyl)methylene diacetate intermediate compound 61 (4.55 mmol, 1.5 g), H₂SO₄ (0.3 mL), H₂O (1.5 mL), and EtOH (4.8 mL) was stirred in a sealed tube at 90°C for 3 hours. The brown solution was then cooled and the solvent was removed under reduced pressure. The residue was partitioned between EtOAc and water (3 x 10 mL). The organic layer was washed with 5% K₂CO₃ aqueous solution and water. The solution was then dried with anhydrous MgSO₄, filtered, and the solvent was reduced under reduced pressure to give the title compound 4-Benzenesulfonamide, 4-formyl- (9CI). Yield: 677 mg, 80%. ¹H NMR (400 MHz, DMSO-d⁶) δ 10.1 (¹H, s) 8.18 (²H, d, J = 8.4 Hz), 7.99 (²H, d, J + 8.8 Hz), 4.96 (¹H, s), 4.91 (¹H). Figure 4. Synthetic route of Benzenesulfonamide, 4-formyl- (9CI).
Uses
4-Desaminomethyl 4-Formylmafenide is an impurity in the synthesis of Mafenide (M110200), an antibacterial.
Benzenesulfonamide, 4-formyl- (9CI) Preparation Products And Raw materials
Raw materials
Preparation Products
Benzenesulfonamide, 4-formyl- (9CI) Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Abosyn | 0512-69561983 13914027025 | he_qf@medinoah.com | China | 3000 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Hangzhou Sage Chemical Co., Ltd. | +86057186818502 13588463833 | info@sagechem.com | China | 10265 | 58 |
| SynAsst Chemical. | 021-60343070 | China | 12731 | 55 | |
| Shanghai Raise Chemical Technology Co.,Ltd | 15026594951 | rs@raise-chem.com | China | 4905 | 55 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Tianjin Kailiqi Biotechnology Co., Ltd. | 15076683720 | klq@cw-bio.com | China | 9784 | 55 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Zhengzhou Huiju Chemical Co., Ltd. | 0371-55900031 18137872243 | 3927209986@qq.com | China | 9998 | 55 |
| Aikon International Limited | 025-66061636 19370895928 | qqyang@aikonchem.com | China | 15810 | 58 |
View Latest Price from Benzenesulfonamide, 4-formyl- (9CI) manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2019-11-08 | Benzenesulfonamide, 4-formyl- (9CI)
3240-35-5
|
1g | 98%min | 20kg/month | Nanjing jinheyou Trading Co., Ltd. |
-

- Benzenesulfonamide, 4-formyl- (9CI)
3240-35-5
- $0.00
- 98%min
- Nanjing jinheyou Trading Co., Ltd.





