Cefotaxime Impurity 5 CAS 64485-89-8
| CAS No. | 64485-89-8 |
| Molecular Formula | C27H25N3O3S |
| Molecular Weight | 471.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefotaxime Impurity 5 (C27H25N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 471.57 g/mol, it falls into the moderately-high-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.
CATO supplies Cefotaxime Impurity 5 (CAS 64485-89-8), a certified reference material (molecular formula C27H25N3O3S, MW 471.57 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Cefotaxime Impurity 5 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 | C27H25N3O3S |
| Molecular Weight | 471.57 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefotaxime Standards
- E-Cefotaxime S-Oxide (CAS 69132-42-9)
- Cefotaxime S-Oxide (CAS 97466-27-8)
- (E)-Cefotaxime S-Oxide (CAS CATO-C4X-120131)
- Cefotaxime S-Oxide (CAS CATO-C4X-120158)
- Cefotaxime S-Oxide 2 (CAS 71048-88-9)
- Cefotaxime Impurity 90 (CAS CATO-C4X-120190)
- Cefotaxime Impurity 16 (CAS CATO-C4X-120116)
- Cefotaxime EP Impurity D Sodium Salt (CAS 65715-12-0)
Recommended Standards
- 4-(4-Phenylpiperazin-1-yl)-6-((phenylsulfonyl)methyl)-2-(pyridin-2-yl)pyrimidine (CAS 303147-57-1)
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- 3-Benzyl-8,9-dimethoxy-5-{[(2-methylphenyl)methyl]sulfanyl}-2H,3H-imidazo[1,2-c]quinazolin-2-one (CAS 477768-54-0)
- N,N-bis(4-methoxybenzyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-sulfonamide (CAS 2281768-10-1)
- (E)-4,4,5,5-tetramethyl-2-(2-(thiophen-3-yl)vinyl)-1,3,2-dioxaborolane (CAS 736987-75-0)
- Methyl 2-(3-chlorophenyl)pyrimidine-5-carboxylate (CAS 1263059-68-2)
- 3-Chloro-4-methylthiophene-2-sulfonyl chloride (CAS 2229137-51-1)
- Tryptophan EP Impurity L Diethylamine (CAS CATO-C4X-137330)
- Dimethyl oxalimidate (CAS 30986-09-5)
- Methyl N-(1,2,3,4-tetrahydroisoquinolin-5-yl)carbamate hydrochloride (CAS 1394041-21-4)
- Triflumuron (CAS 64628-44-0)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)thiazole (CAS 2256758-32-2)
- (3,5-Difluorophenyl)methanamine hydrochloride (CAS 90389-28-9)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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