Cefodizime Impurity 18 CAS 66340-86-1
| CAS No. | 66340-86-1 |
| Molecular Formula | C7H11NO4 |
| Molecular Weight | 173.17 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 173.17 g/mol gives Cefodizime Impurity 18 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefodizime Impurity 18 (CAS 66340-86-1, C7H11NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefodizime Impurity 18 (C7H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 173.17 g/mol, it falls into the medium-molecular-weight range. 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 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.
CATO manufactures Cefodizime Impurity 18 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H11NO4 |
| Molecular Weight | 173.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
Related Cefodizime Standards
- Cefodizime Impurity 21 (CAS 60846-14-2)
- Cefodizime Impurity 10 (CAS 66508-93-8)
- Cefodizime Impurity 15 (CAS CATO-C4X-180615)
- Cefodizime Impurity 3 (CAS 24209-43-6)
- Cefodizime Sodium (CAS 86329-79-5)
- Cefodizime Impurity 3 (CAS 111298-82-9)
- Cefodizime Open-Ring Impurity (CAS CATO-C4X-180620)
- Cefodizime Impurity 2 (CAS CATO-C4X-18062)
Recommended Standards
- Indacaterol Impurity 22 (CAS 2598-30-3)
- Vigabatrin EP Impurity E (CAS 1378466-25-1)
- Baricitinib Impurity 96 (CAS CATO-C4X-226096)
- Ceftriaxone Impurity 45 (CAS CATO-C4X-116345)
- Umeclidinium Impurity 16 (CAS 939900-20-6)
- Ketoprofen Impurity 63 (CAS 146257-39-8)
- Cytarabine Impurity 23 (CAS CATO-C4X-200523)
- HISTIDINE Impurity 11 (CAS CATO-C4X-323911)
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- 1024126-31-5 2-(4-bromophenyl)-1-(4-methoxyphenyl)-6-methyl-4,5,6,7-tetrahydro-1H-indol-4-one MS-10345 (CAS 1024126-31-5)
- 6-(2-Chlorophenyl)-2-morpholino-4-(trifluoromethyl)nicotinonitrile (CAS 478049-43-3)
- 5-Bromo-2-cyclopropyl-4-methylpyridine (CAS 579475-81-3)
- 7-(Hydroxymethyl)-3,4-dihydroquinolin-2(1H)-one (CAS 857272-53-8)
- Neuropeptide S (human) (CAS 412938-67-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com