Cefazolin Impurity 11 CAS 478494-71-2
| CAS No. | 478494-71-2 |
| Molecular Formula | C11H12N6O5S |
| Molecular Weight | 340.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefazolin Impurity 11 (CAS 478494-71-2), a pharmacopoeial impurity reference standard (molecular formula C11H12N6O5S, MW 340.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H12N6O5S, Cefazolin Impurity 11 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 340.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
As a certified reference material (CRM), Cefazolin Impurity 11 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 | C11H12N6O5S |
| Molecular Weight | 340.32 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Cefazolin Standards
- Cefazolin 3-Hydroxymethyl Impurity Sodium Salt (CAS 50971-65-8)
- Cefazolin EP Impurity J (CAS 1675245-00-7)
- Cefazolin USP Related Compound D(Diastereoisomer Mixture) (CAS 1675245-01-8)
- Cefazolin Impurity 89 (CAS CATO-C4X-157789)
- Cefazolin EP Impurity A (CAS 30246-33-4)
- Cefazolin Impurity 36 (CAS CATO-C4X-157736)
- Cefazolin EP Impurity C (CAS 56842-77-4)
- Cefazolin Impurity 70 (CAS CATO-C4X-157770)
Recommended Standards
- 9022-96-2 Butyl alcohol, titanium(4+) salt, polymers 1-Butanol, titanium(4+) salt (4:1), homopolymer 1-Butanol, titanium(4+) salt, homopolymer Poly(di-n-butoxy titanoxane) Titanium tetrabutylate polymer (CAS 9022-96-2)
- (2R)-2-ethyl-2-hydroxy-4-phenylbutanoic acid; trifluoromethanesulfonic acid (2R)-2-ethyl-2-oxidanyl-4-phenyl-butanoic acid; tris(fluoranyl)methanesulfonic acid 88767-98-0 A842891 (CAS 88767-98-0)
- (E)-trimethyl((1-iodo-4-methyloct-1-en-4-yl)oxy)silane 62555-05-9 A1-01385 (CAS 62555-05-9)
- 5593-70-4 FJS8Q2MX9I Tetrabutoxy titanium Tetrabutyl titanate 1-Butanol, titanium(4+) salt Butyl alcohol, titanium(4+) salt (8CI) Titanic acid, tetrabutyl ester Titanium tetrabutanolate 1-Butanol, titanium(4+) salt (4:1) B 1 (titanate) 1-Butanol titanium(4+) salt Butyl alcohol, titanium(4+) salt Butyl orthotitanate Butyl titanate Butyl titanate monomer Butyl titanate(IV) Butyl titanate(IV), (BuO)4Ti EINECS 227-006-8 HSDB 839 NSC 220232 NSC 59799 Orgatics TA 25 Orthotitanic acid, tetrabutyl ester Tetrabutoxytitanium Tetrabutyl orthotitanate Tetrabutyltitanate Tetrabutyltitanate [Czech] Titanium(4+) butoxide Titanium butoxide (Ti(OBu)4) Titanium butylate Titanium tetrabutoxide Titanium, tetrabutoxy- Titanium tetrabutylate Titanium tetrakis(butoxide) Tyzor BP Tyzor TBT UNII-FJS8Q2MX9I EC 227-006-8 (CAS 5593-70-4)
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- 8-Bromonon-8-enoic acid (CAS 732248-59-8)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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