Sulfamethoxazole EP Impurity B
* Please be kindly noted products are not for therapeutic use. We do not sell to patients.

Category | Bioactive by-products |
Catalog number | BBF-04318 |
CAS | 135529-16-7 |
Molecular Weight | 408.45 |
Molecular Formula | C16H16N4O5S2 |
Purity | ≥90% |
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Capabilities & Facilities
Fermentation Lab
4 R&D and scale-up labs
2 Preparative purification labs
Fermentation Plant
Semi pilot, pilot and industrial plant 4 Manufacturing sites 7 Production lines at pilot scale 100+ Reactors of 30-4000 L; 170+ reactors of 20 KL-30 KL; 24+ reactors of >100 KL 2 Hydrogenation reactors (200 L, 4Mpa and 1000L, 4Mpa)
Product Description
An impurity of Sulfamethoxazole. Sulfamethoxazole is a broad-spectrum antimicrobial drug commonly used to treat various bacterial infections. It is often combined with trimethoprim to form the compound preparation co-trimoxazole, which enhances its antibacterial efficacy.
- Specification
- Properties
- Reference Reading
- Price Product List
Synonyms | N-(4-Aminobenzenesulfonyl) Sulfamethoxazole; Sulfamethoxazole Impurity B; Sulfamethoxazole Related Compound B; 4-Amino-N-[4-[[(5-methyl-3-isoxazolyl)amino]sulfonyl]phenyl]benzenesulfonamide; 4-[[(4-Aminophenyl)sulfonyl]amino]-N-(5-methylisoxazol-3-yl)benzenesulfonamide; USP Sulfamethoxazole Related Compound B; 4-Amino-N-{4-[N-(5-methylisoxazol-3-yl)sulfamoyl]phenyl}benzenesulfonamide |
Storage | Store at 2-8 °C |
IUPAC Name | 4-amino-N-[4-[(5-methyl-1,2-oxazol-3-yl)sulfamoyl]phenyl]benzenesulfonamide |
Canonical SMILES | CC1=CC(=NO1)NS(=O)(=O)C2=CC=C(C=C2)NS(=O)(=O)C3=CC=C(C=C3)N |
InChI | InChI=1S/C16H16N4O5S2/c1-11-10-16(18-25-11)20-27(23,24)15-8-4-13(5-9-15)19-26(21,22)14-6-2-12(17)3-7-14/h2-10,19H,17H2,1H3,(H,18,20) |
InChI Key | ULRBBWWPWOJYFE-UHFFFAOYSA-N |
Appearance | White to Off-white Solid |
Antibiotic Activity Spectrum | Bacteria |
Boiling Point | 659.4±65.0 °C at 760 mmHg |
Melting Point | >228 °C (dec.) |
Density | 1.557±0.06 g/cm3 (Predicted) |
Solubility | Soluble in DMSO (Slightly), Methanol (Slightly) |
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
