Benzylpenicillin Impurity 31 CAS CATO-C4X-189931
| CAS No. | CATO-C4X-189931 |
| Molecular Formula | C9H14N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Benzylpenicillin Impurity 31 (CAS CATO-C4X-189931) is a certified pharmaceutical impurity reference standard with the molecular formula C9H14N2C2H4O2 and a molecular weight of 210.28 g/mol.
The molecular framework of Benzylpenicillin Impurity 31 (C9H14N2C2H4O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C9H14N2 2*C2H4O2 |
| Molecular Weight | 210.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Benzylpenicillin Standards
- Benzylpenicillin Potassium EP impurity E (CAS 11039-68-2)
- Benzylpenicillin Impurity 11 (CAS 118-53-6)
- Benzylpenicillin Impurity 21(Mixture of Diastereomers) (CAS 13057-98-2)
- Benzylpenicillin EP Impurity D (CAS 13093-87-3)
- Benzylpenicillin Impurity 18 (CAS 22801-31-6)
- Benzylpenicillin Impurity 68 (CAS 30200-14-7)
- Benzylpenicillin Potassium EP Impurity I potassium salt (CAS 31447-86-6)
- Benzylpenicillin CP Impurity I (CAS 3264-88-8)
Recommended Standards
- Lenvatinib Impurity 120 (CAS CATO-C4X-1140120)
- Emtricitabine Impurity N2 (CAS 1246819-86-2)
- Suvorexant Impurity 9 (CAS 2762965-06-8)
- 1-Hydroxyspiro[3.5]nonan-7-one ethylene glycol acetal (CAS 1823375-43-4)
- 4-(((Methyl(phenyl)amino)methylene)amino)benzoic acid (CAS 951626-83-8)
- (S)-5-Amino-2-((S)-2-(((benzyloxy)carbonyl)amino)propanamido)-5-oxopentanoic acid (CAS 21467-17-4)
- (R)-1-(2-Morpholinophenyl)ethan-1-amine (CAS 1212879-51-0)
- 1,2-dibromo-3-isothiocyanatopropane 2,3-Dibromopropyl isothiocyanate 51784-10-2 (CAS 51784-10-2)
- 3-Isopropoxypyridin-4-amine (CAS 1395034-81-7)
- Tau Peptide (294-305) (human) trifluoroacetate salt (CAS 1428135-29-8)
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