Cefdinir Impurity 5 CAS 178949-04-7
| CAS No. | 178949-04-7 |
| Molecular Formula | C13H15N5O4S2 |
| Molecular Weight | 369.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefdinir Impurity 5 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.
CATO supplies Cefdinir Impurity 5 (CAS 178949-04-7), a pharmacopoeial impurity reference standard (molecular formula C13H15N5O4S2, MW 369.42 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefdinir Impurity 5 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 369.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H15N5O4S2 |
| Molecular Weight | 369.42 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefdinir Standards
- Cefdinir Impurity 62 (CAS CATO-C4X-121062)
- Cefdinir Impurity 65 (CAS CATO-C4X-121065)
- Cefdinir USP Related Compound B (CAS 79350-10-0)
- Cefdinir Impurity 39 (CAS 104797-47-9)
- Cefdinir Impurity 66 (CAS CATO-C4X-121066)
- Cefdinir Impurity 6 (CAS 79350-14-4)
- Cefdinir Impurity 2 (CAS CATO-C4X-12102)
- 3-Methyl cefdinir (CAS 71091-93-5)
Recommended Standards
- Cefotaxime Impurity 49 (CAS 130468-09-6)
- Cefdenib decarboxylated ring opening lactone mixture (CAS CATO-C4X-121057)
- Erlotinib Impurity 46 (CAS CATO-C4X-106946)
- Trimetrexate (CAS 52128-35-5)
- Salmeterol Impurity 25 (CAS CATO-C4X-105025)
- Proparacaine Impurity 33 (CAS 754936-74-8)
- Trifarotene Impurity 13 (CAS CATO-C4X-313213)
- 5-(4-Bromo-2-methylphenyl)-5-oxovaleric acid (CAS 898767-31-2)
- 2,5,5-Trimethyl-1,3,2-dioxaborinane (CAS 66423-62-9)
- 2-[N-(2-Chlorophenyl)2,5-dichlorobenzenesulfonamido]acetic acid (CAS 337921-87-6)
- (7-Amino-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol (CAS 313656-57-4)
- 2-(2,3-Epoxypropoxy)-3-phenylpropiophenone-d (CAS 1189450-87-0)
- 5-bromo-N-(2-hydroxyethyl)pyridine-2-carboxamide (CAS 1289059-55-7)
- Hexapeptide-11 (CAS 100684-36-4)
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