Cefazolin Impurity 87 CAS CATO-C4X-157787
| CAS No. | CATO-C4X-157787 |
| Molecular Formula | C5H9N5O3 |
| Molecular Weight | 187.16 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.
As a process- or degradation-related impurity, Cefazolin Impurity 87 (CAS CATO-C4X-157787, C5H9N5O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Cefazolin Impurity 87 (C5H9N5O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C5H9N5O3 |
| Molecular Weight | 187.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 5 |
Related Cefazolin Standards
- Cefazolin Impurity 65 (CAS CATO-C4X-157765)
- Cefazolin Impurity 58 (CAS 1012-29-9)
- (Z)-Cefazolin Impurity 44 (CAS 66338-95-2)
- Cefazolin Impurity 44 (CAS 20198-75-8)
- Cefazolin Impurity 31 (CAS CATO-C4X-157731)
- Cefazolin Impurity 26 (CAS CATO-C4X-157726)
- Cefazolin Impurity 39 (CAS 13616-37-0)
- Cefazolin Impurity 28 (CAS 26240-90-4)
Recommended Standards
- rac 3,4-Dihydroxymandelic Acid-d3 (CAS CATO-CCHM702952)
- Topiroxostat Impurity 42 (CAS CATO-C4X-105542)
- DL-3,4-Dihydroxymandelic acid-d3 (CAS 2124275-75-6)
- Tetrazolo[1,5-a]quinoxalin-4(5H)-one (CAS 29067-85-4)
- Midecamycin Impurity 25 (CAS CATO-C4X-312225)
- Minocycline Impurity 53 (CAS CATO-C4X-169953)
- Betahistine impurity 35 (CAS CATO-C4X-183835)
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- 3-Amino-3-(2-fluorophenyl)-2,2-dimethylpropan-1-ol (CAS 1278662-31-9)
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- 7-(4-Methoxyphenoxy)-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 477852-32-7)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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