Sulfisoxazole CAS 127-69-5
| CAS No. | 127-69-5 |
| Molecular Formula | C11H13N3O3S |
| Molecular Weight | 267.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 267.30 g/mol gives Sulfisoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Sulfisoxazole (CAS 127-69-5), a certified reference material (molecular formula C11H13N3O3S, MW 267.30 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H13N3O3S, Sulfisoxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Sulfisoxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H13N3O3S |
| Molecular Weight | 267.30 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Sulfisoxazole Standards
Recommended Standards
- Sulfamoxol (CAS 729-99-7)
- Oxycarboxin (CAS 5259-88-1)
- Leucogen Impurity 8 (CAS 97418-52-5)
- Sulfatroxazole (CAS 23256-23-7)
- Dihydrogen hexachloroosmate(IV) hexahydrate (CAS 27057-71-2)
- 1-(3-Hydroxy-5-(trifluoromethyl)phenyl)ethan-1-one (CAS 1261826-34-9)
- 1-(2-Chloro-6-fluorophenyl)ethane-1,2-diamine (CAS 1154940-72-3)
- 3- Cyclopropyl- 2- propenoic Acid Ethyl Ester (CAS 5808-99-1)
- 2-(3,3-difluoroazetidin-1-yl)ethan-1-amine (CAS 2045189-46-4)
- (5-Phenyl-1H-pyrazol-3-yl)methanamine hydrochloride (CAS 1285369-36-9)
- 3-(5-Methoxy-1H-indol-1-yl)propan-1-amine (CAS 46397-97-1)
- 4-Bromo-2-(difluoromethyl)pyridine-3,5-diol (CAS 1805251-26-6)
- (R)-(-)-4-(2,3-Epoxypropoxy)carbazole (CAS 95093-96-2)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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