Micafungin Impurity 4 CAS 179162-55-1
| CAS No. | 179162-55-1 |
| Molecular Formula | C21H21NO4 |
| Molecular Weight | 351.40 g/mol |
| 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 Micafungin Impurity 4.
CATO supplies Micafungin Impurity 4 (CAS 179162-55-1), a pharmacopoeial impurity reference standard (molecular formula C21H21NO4, MW 351.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Micafungin Impurity 4 (C21H21NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 351.40 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).
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.
As a certified reference material (CRM), Micafungin Impurity 4 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 | C21H21NO4 |
| Molecular Weight | 351.40 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 1 |
Related Micafungin Standards
- Micafungin Sodium (CAS 208538-73-2)
- Micafungin Impurity 12 (CAS CATO-C4X-169512)
- Micafungin Open-ring Analog (CAS 539823-82-0)
- Micafungin Impurity 14 Sodium Salt (CAS 1392514-03-2)
- Micafungin Serine Analog (CAS 1392514-04-3)
- Micafungin Impurity 20 (CAS 1392514-06-5)
- Micafungin Impurity 21 (CAS CATO-C4X-169521)
- Micafungin Impurity 22 (CAS CATO-C4X-169522)
Recommended Standards
- Nafamostat-d4 (CAS CATO-C4X-133251)
- Lacosamide EP Impurity H(RR-Isomer) (CAS CATO-C4X-18301)
- Rosuvastatin Impurity 230 (CAS CATO-C4X-1169230)
- Lacosamide Impurity 27 (CAS CATO-C4X-183027)
- Topiroxostat impurity 70 (CAS CATO-C4X-105570)
- Mosapride impurity 42 (CAS CATO-C4X-104457)
- Lemborexant Impurity 101 (CAS CATO-C4X-3042101)
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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