Cefdinir Impurity 86 CAS 1884263-19-7
| CAS No. | 1884263-19-7 |
| Molecular Formula | C23H21ClO5 |
| Molecular Weight | 412.86 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 412.86 g/mol gives Cefdinir Impurity 86 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Cefdinir Impurity 86 (CAS 1884263-19-7) is a certified pharmaceutical impurity reference standard with the molecular formula C23H21ClO5 and a molecular weight of 412.86 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution, Cefdinir Impurity 86 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 412.86 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C23H21ClO5 |
| Molecular Weight | 412.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
Related Cefdinir Standards
- Cefdinir Impurity C84 (CAS 178422-45-2)
- Cefdinir CP Impurity P&Q (CAS CATO-C4X-121010)
- Cefdinir USP Related Compound A (CAS 178422-42-9)
- Cefdinir CP Impurity H (CAS CATO-C4X-121022)
- Cefdinir CP Impurity Q (CAS CATO-C4X-121055)
- Cefdinir Impurity 59 (CAS CATO-C4X-121059)
- Cefdinir Impurity 60 (CAS CATO-C4X-121060)
- Cefdinir Impurity 61 (CAS CATO-C4X-121061)
Recommended Standards
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- Teduglutide Impurity 3 (CAS CATO-C4X-23643)
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- 4-Iodo-1H-pyrazole-1-ethanol (CAS 1408334-75-7)
- 2-(3-Isobutoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 932796-07-1)
- Lamivudine-13c,15n2,d2 (CAS CATO-CCAD303867)
- 1000018-44-9 5-(2,6-Dimethylmorpholin-4-yl)-2-nitrobenzoic acid 5-(2,6-dimethylmorpholino)-2-nitrobenzoic acid (CAS 1000018-44-9)
- 1-cyclopropyl-6-fluoro-1,2,3,4-tetrahydroquinoxaline (CAS 1532041-28-3)
- 1-(Aminomethyl)cyclopent-3-ene-1-carboxylic acid (CAS 1492655-40-9)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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