Ampicillin Impurity 66 CAS CATO-C4X-144366
| CAS No. | CATO-C4X-144366 |
| Molecular Formula | C16H20N3O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ampicillin Impurity 66 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Ampicillin Impurity 66 (CAS CATO-C4X-144366), a pharmacopoeial impurity reference standard (molecular formula C16H20N3OCl, MW 305.81 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.
As a certified reference material (CRM), Ampicillin Impurity 66 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 | C16H20N3O Cl |
| Molecular Weight | 305.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ampicillin Standards
- Ampicillin EP Impurity I (CAS 10001-82-8)
- Ampicillin oligomer 1 (trimer) (CAS 114977-84-3)
- Ampicillin EP Impurity A Sodium Salt (CAS 1203-85-6)
- Ampicillin EP Impurity E (CAS 1207726-28-0)
- Ampicillin Impurity 70 (CAS 124774-48-7（free base）)
- Ampicillin-d5 (CAS 1426173-65-0)
- Ampicillin Trihydrate - Impurity D (Sodium Salt) (CAS 1642559-70-3)
- Ampicillin EP Impurity B (CAS 19379-33-0)
Recommended Standards
- Plerixafor impurity 41 (CAS CATO-C4X-113341)
- Avatrombopag Impurity 102 (CAS CATO-C4X-2234102)
- Ribavirin Impurity 36 (CAS CATO-C4X-14138)
- 4-Aminomorpholine (CAS 4319-49-7)
- 1-Methylthymine (CAS 4160-72-9)
- 103856-74-2 5-Methyl-1-(2-nitrophenyl)-1H-pyrazole-3-carboxylic acid 7825AC C11H9N3O4 (CAS 103856-74-2)
- 2,6-dimethoxy-1-iodobenzene (CAS 16932-44-8)
- 3-Methoxy-1-naphthaldehyde (CAS 856204-26-7)
- 3-Bromo-4-methyl-5-nitro-2-pyridinone (CAS 1049706-72-0)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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