ChemicalBook >> CAS DataBase List >>Benzenesulfonamide, 4-formyl- (9CI)

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
Last updated:2026-05-27 23:03:25

Benzenesulfonamide, 4-formyl- (9CI) Properties

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)  Exclamation Mark (GHS07)
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
Product number Packaging Price Buy
PHR3032 100 mg $584 Buy
432064 10mg $468 Buy
432064 100mg $2053 Buy
AS146186 1g $281 Buy
AS146186 5g $933 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

Global Suppliers ( 55)
Supplier Tel Email 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
Benzenesulfonamide, 4-formyl- (9CI) pictures 2019-11-08 Benzenesulfonamide, 4-formyl- (9CI)
3240-35-5
1g 98%min 20kg/month Nanjing jinheyou Trading Co., Ltd.
Benzenesulfonamide, 4-formyl- (9CI) 4-sulfamoylbenzaldehyde benzenesulfonamide, 4-formyl- 4-methanoylbenzenesulfonamide Mafenide USP RC A 4-FORMYLBENZENESULFONAMIDE,95% Mafenide Impurity 1 (Mafenide USP RC A) p-Sulfamoylbenzaldehyde Mafenide Acetate Impurity 1 (Mafenide USP Related Compound A) 3240-35-5 SULFONAMIDE