Cefazolin Impurity 68 CAS CATO-C4X-157768
| CAS No. | CATO-C4X-157768 |
| Molecular Formula | C25H24N12O6S6 |
| Molecular Weight | 780.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefazolin Impurity 68 (C25H24N12O6S6) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 20.0, corresponding to approximately 20 ring(s) or double-bond equivalent(s). With a molecular weight of 780.92 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Cefazolin Impurity 68 (CAS CATO-C4X-157768), a pharmacopoeial impurity reference standard (molecular formula C25H24N12O6S6, MW 780.92 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C25H24N12O6S6 |
| Molecular Weight | 780.92 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 12 |
| Sulfur Atoms | 6 |
Related Cefazolin Standards
- Cefazolin Impurity 32 (CAS CATO-C4X-157732)
- Cefazolin Impurity 33 (CAS CATO-C4X-157733)
- Cefazolin Impurity 34 (CAS CATO-C4X-157734)
- Cefazolin Impurity 59 (CAS CATO-C4X-157759)
- Cefazolin Impurity 78 (CAS CATO-C4X-157778)
- Cefazolin Impurity 80 (CAS CATO-C4X-157780)
- Cefazolin Dimer N43 (CAS CATO-C4X-157743)
- Cefazolin Impurity 79 (CAS CATO-C4X-157779)
Recommended Standards
- [bAla8]-Neurokinin A(4-10) (CAS 122063-01-8)
- (β-Ala8)-Neurokinin A (4-10) (CAS 127633-71-0)
- β--Lactosyltrichloroacetimidate heptaacetate (CAS 1142022-76-1)
- Tenacigenin B, 3-O-β-Allopyranosyl-(1→4)-β-oleandropyranosyl-11-O-isobutyryl-12-O-acetyl- (CAS 1260252-18-3)
- Ceritinib Impurity 84 (CAS CATO-C4X-104884)
- Terbutaline Impurity 80 (CAS CATO-C4X-118380)
- Ciclesonide Impurity 11 (CAS CATO-C4X-320111)
- Methyl 2-methyl-1-oxo-1,2-dihydroisoquinoline-3-carboxylate (CAS 89806-31-5)
- Omeprazole EP Impurity F (CAS 125656-82-8)
- 4-(Phenylthio)butan-2-one (CAS 6110-01-6)
- 4-Chloro-6-morpholin-4-yl-pyrimidin-5-ylamine 4-chloro-6-(4-morpholinyl)-5-pyrimidinamine 84762-69-6 (CAS 84762-69-6)
- 5-Bromotetracene (CAS 23790-75-2)
- (3R,4S,5S,6R)-2-(Decyloxy)-6-(hydroxymethyl)tetrahydro-2H-Pyran-3,4,5-triol (CAS 54549-25-6)
- Des-Ala18-Tirzepatide (CAS CATO-CPTD788955)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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