Entacapone Impurity 6 CAS 158693-01-7
| CAS No. | 158693-01-7 |
| Molecular Formula | C10H7N3O5 |
| Molecular Weight | 249.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Entacapone Impurity 6.
Entacapone Impurity 6 (CAS 158693-01-7) is a certified pharmaceutical impurity reference standard with the molecular formula C10H7N3O5 and a molecular weight of 249.18 g/mol.
Based on its molecular formula C10H7N3O5, Entacapone Impurity 6 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Entacapone Impurity 6 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.
Physical & Chemical Properties
| Molecular Formula | C10H7N3O5 |
| Molecular Weight | 249.18 g/mol |
| Appearance | Pale yellow to 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 methanol, ethanol, DMSO |
| 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.) | 2002 |
| Nitrogen Atoms | 3 |
Related Entacapone Standards
- Entacapone impurity 42 (CAS CATO-C4X-162942)
- Entacapone EP Impurity F (CAS 160391-70-8)
- Entacapone Impurity 59 (CAS CATO-C4X-162959)
- Entacapone Impurity 1 (CAS CATO-C4X-16291)
- Entacapone impurity 53 (CAS CATO-C4X-162953)
- Entacapone EP Impurity G (CAS 1364322-41-7)
- Entacapone impurity 18 (CAS CATO-C4X-162918)
- Entacapone impurity 52 (CAS CATO-C4X-162952)
Recommended Standards
- Methyl 6-nitro-2-oxo-2H-chromene-3-carboxylate (CAS 91059-67-5)
- 1,1,1-Trifluoro-2-(3-nitrophenyl)butan-2-ol (CAS 1050445-63-0)
- Methyl 4-nitro-2-(1H-tetrazol-1-yl)benzoate (CAS 909229-53-4)
- 2,2,2-Trifluoroethyl (4,6-dimethylpyrimidin-2-yl)carbamate (CAS 1087788-72-4)
- Agomelatine Impurity 42 (CAS CATO-C4X-110842)
- Sorafenib Impurity 61 (CAS CATO-C4X-112461)
- Pinaverium Bromide Impurity 23 (Mixture of Diastereomers) (CAS CATO-C4X-246723)
- N-(3-Fluorophenyl)-N-(1,4,6-trimethyl-1H-pyrazolo[3,4-b]pyridin-3-yl)urea (CAS 478047-12-0)
- Bis(tert-butylamino)chloro-s-triazine (CAS 39605-42-0)
- 7-Methoxy-4,5-dihydro-3H-spiro[benzo[b][1,4]oxazepine-2,4'-piperidine] (CAS 1097233-51-6)
- (4s)-3,4-Dihydro-2h-1-benzopyran-4-ol (CAS 132561-36-5)
- 6-Isopropoxypyridine-2,3-diamine (CAS 1451208-81-3)
- 3-(azetidin-3-yl)-5-[(tert-butoxy)methyl]-1,2-oxazole, methanesulfonic acid (CAS 2060029-71-0)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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