Furosemide Impurity 13 CAS CATO-C4X-140213
| CAS No. | CATO-C4X-140213 |
| Molecular Formula | C17H15N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Furosemide Impurity 13.
CATO supplies Furosemide Impurity 13 (CAS CATO-C4X-140213), a pharmacopoeial impurity reference standard (molecular formula C17H15N2O4Na, MW 334.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Furosemide Impurity 13 (C17H15N2O4Na) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 334.31 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Furosemide Impurity 13 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 | C17H15N2O4 Na |
| Molecular Weight | 334.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Furosemide Standards
- Furosemide Impurity 64 (CAS 116436-17-0)
- Furosemide-d5 (CAS 1189482-35-6)
- Furosemide Impurity 14 (CAS 133989-65-8)
- Furosemide Impurity 48 Sodium Salt (CAS 133989-65-8（free base）)
- Furosemide Impurity 41 (CAS 137-65-5)
- Furosemide Impurity 33 (CAS 1803102-41-1)
- Furosemide Impurity 32 (CAS 18240-50-1)
- Furosemide Impurity 57 (CAS 19377-82-3)
Recommended Standards
- Cefoperazone Impurity 64 (CAS CATO-C4X-114964)
- Flurbiprofen Impurity 8 (CAS 542-10-9)
- Edoxaban Impurity 77 (CAS CATO-C4X-106377)
- Apalutamide Impurity 73 (CAS CATO-C4X-274973)
- 5-bromothiazolo[3,2-b][1,2,4]triazole (CAS 2757592-53-1)
- 1-(2-Chloro-5-methylphenoxy)-3-[(propan-2-yl)amino]propan-2-ol (CAS 88643-47-4)
- 1-(4-(4-Aminophenyl)piperazin-1-yl)-2,2-dimethylpropan-1-one (CAS 325168-03-4)
- N-(2-furylmethyl)-N-phenylamine (CAS 4439-56-9)
- 3-Methylbenzo[d]oxazol-2(3H)-one (CAS 21892-80-8)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com