Cefazolin Impurity 53 CAS 26476-16-4
| CAS No. | 26476-16-4 |
| Molecular Formula | C3H5N5O |
| Molecular Weight | 127.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cefazolin Impurity 53 is closely related to an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cefazolin Impurity 53 (CAS 26476-16-4) is a certified pharmaceutical impurity reference standard with the molecular formula C3H5N5O and a molecular weight of 127.10 g/mol.
The molecular framework of Cefazolin Impurity 53 (C3H5N5O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 Cefazolin Impurity 53 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 | C3H5N5O |
| Molecular Weight | 127.10 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 5 |
Related Cefazolin Standards
- Cefazolin USP RC A (CAS 21732-17-2)
- Cefazolin Impurity N14 (CAS 21743-64-6)
- Cefazolin EP Impurity E(Cefazolin USP RC E) (CAS 29490-19-5)
- Cefazolin Impurity 46 (CAS 18686-82-3)
- Cefazolin Impurity 26 (CAS 1925-78-6)
- Cefazolin Impurity 39 (CAS 13616-37-0)
- Cefazolin Impurity 28 (CAS 26240-90-4)
- Cefazolin Impurity 44 (CAS 20198-75-8)
Recommended Standards
- Ribavirin Impurity 51 (CAS 4928-88-5)
- Leflunomide Impurity 18 (CAS 17153-20-7)
- Metronidazole Impurity 24 (CAS 3034-42-2)
- Leflunomide EP Impurity D (CAS 42831-50-5)
- Ibrutinib Impurity 88 (CAS 2417548-83-3)
- Avibactam Impurity 40 (CAS CATO-C4X-134840)
- Mivacurium Chloride Impurity 5 (CAS 1026602-92-5)
- Ethyl 4-methyl-2,6-diphenylpyrimidine-5-carboxylate (CAS 80742-17-2)
- 2-((Chloromethyl)thio)-4,6-dimethylpyrimidine (CAS 19834-92-5)
- 3-(3-oxabicyclo[3.1.0]hexan-1-yl)prop-2-ynoic acid (CAS 2001676-72-6)
- (4-Amino-3-methylphenyl)(piperazin-1-yl)methanone (CAS 1153038-58-4)
- 1-(2,4-Dimethylphenyl)-N-methylmethanamine (CAS 766502-85-6)
- 1-(1-Methylpiperidin-4-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1211585-33-9)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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