Furosemide Impurity 58 CAS 2470439-95-1
| CAS No. | 2470439-95-1 |
| Molecular Formula | C17H16N2O4 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Furosemide Impurity 58 (CAS 2470439-95-1) is a certified pharmaceutical impurity reference standard with the molecular formula C17H16N2O4 and a molecular weight of 312.32 g/mol.
Structurally, Furosemide Impurity 58 (C17H16N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 312.32 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).
As a certified reference material (CRM), Furosemide Impurity 58 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 | C17H16N2O4 |
| Molecular Weight | 312.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 2 |
Related Furosemide Standards
- Furosemide Impurity 15 (CAS CATO-C4X-140215)
- Furosemide Impurity 14 (CAS 133989-65-8)
- Furosemide Impurity 60 (CAS 866764-34-3)
- Furosemide Impurity 45 (CAS CATO-C4X-140245)
- Furosemide Impurity 23 (CAS CATO-C4X-140223)
- Furosemide Impurity 31 (CAS 4818-85-3)
- Furosemide Amide Impurity (CAS 4793-47-9)
- Furosemide (CAS 54-31-9)
Recommended Standards
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- Bambuterol EP Impurity B (CAS 112935-92-9)
- Tedizolid Impurity 93 (CAS CATO-C4X-105493)
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- (R)--(3,4-Dimethoxyphenyl)alanine (CAS 713513-03-2)
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