Indobufen Impurity 6 CAS 3087670-52-5
| CAS No. | 3087670-52-5 |
| Molecular Formula | C18H19NO2 |
| Molecular Weight | 281.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Indobufen Impurity 6 (CAS 3087670-52-5) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19NO2 and a molecular weight of 281.35 g/mol.
Structurally, Indobufen Impurity 6 (C18H19NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 281.35 g/mol, it falls into the medium-molecular-weight range. 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).
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), Indobufen Impurity 6 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 | C18H19NO2 |
| Molecular Weight | 281.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 1 |
Related Indobufen Standards
- Indobufen Impurity 12 (CAS CATO-C4X-179212)
- Indobufen Impurity 81 (CAS CATO-C4X-179281)
- Indobufen (CAS 63610-08-2)
- (R)-Indobufen (CAS 131484-83-8)
- (S)-Indobufen (CAS 118289-97-7)
- Indobufen Impurity 31 (CAS CATO-C4X-179231)
- Indobufen impurity 78 (CAS CATO-C4X-179278)
- Indobufen Impurity 82 (CAS CATO-C4X-179282)
Recommended Standards
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- LCZ-696 Impurity 89 (CAS CATO-C4X-169689)
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- Relugolix Impurity 109 (CAS CATO-C4X-2429109)
- Promethazine Impurity 67 (CAS 7647-63-4)
- Lesinurad Impurity 10 (CAS 2250243-55-9)
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- Emtricitabine Impurity 3 (CAS 2331211-44-8)
- 1-(3-Chlorobenzyl)-3-(4-methylpiperazine-1-carbonyl)pyridin-2(1H)-one (CAS 338754-96-4)
- 4-Dechloro-4-hydroxy Diclazuril Methyl Ester (CAS 1101258-51-8)
- Ethyl 3-fluoro-5-methoxybenzoate (CAS 1214332-62-3)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
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