Minodronic Impurity 4 CAS 17745-04-9
| CAS No. | 17745-04-9 |
| Molecular Formula | C9H8N2O2 |
| Molecular Weight | 176.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Minodronic Impurity 4 (C9H8N2O2) 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 the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Minodronic Impurity 4 (CAS 17745-04-9), a pharmacopoeial impurity reference standard (molecular formula C9H8N2O2, MW 176.17 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Minodronic Impurity 4 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 | C9H8N2O2 |
| Molecular Weight | 176.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related Minodronic Standards
- Minodronic Impurity 2 (CAS 19741-30-1)
- Minodronic Acid Impurity 14 (CAS CATO-C4X-124114)
- Minodronic Impurity 33 (CAS 114736-26-4)
- Minodronic Impurity 6 (CAS 114736-25-3)
- Minodronic Acid Impurity 23 (CAS 14305-17-0)
- Minodronic Acid Impurity 25 (CAS 64951-08-2)
- Minodronic Acid Impurity 3 (CAS 1260383-71-8)
- Minodronic Acid Impurity 9 (CAS 1244029-51-3)
Recommended Standards
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- Ethyl 2-cyanoisonicotinate (CAS 58481-14-4)
- Enzalutamide Impurity 41 (CAS CATO-C4X-101641)
- Levosimendan Impurity 32 (CAS CATO-C4X-130832)
- Lidocaine Impurity 86 (CAS CATO-C4X-167986)
- 5-Fluoro-1,3,4-thiadiazole-2-sulfonamide (CAS 544705-81-9)
- N-Allyl-2-((3,5-dimethylisoxazol-4-yl)methoxy)-N-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)benzamide (CAS 870763-76-1)
- 6-Iodo-2-methylquinolin-4-ol (CAS 1085192-93-3)
- 5-(4-Chlorophenyl)-4-hexyl-4H-1,2,4-triazole-3-thiol (CAS 379726-37-1)
- N-(3-(3-methyl-1,2,4-oxadiazol-5-yl)propyl)thietan-3-amine (CAS 1879542-22-9)
- 4-(Difluoromethyl)benzo[d]oxazole-2-sulfonyl chloride (CAS 1806428-02-3)
- Human glucagon CRS (CAS 9007-92-5)
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