Entacapone Impurity 1 CAS 100644-89-1
| CAS No. | 100644-89-1 |
| Molecular Formula | C16H14O6 |
| Molecular Weight | 302.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Entacapone Impurity 1 (C16H14O6) contains a flavonoid core, 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 302.28 g/mol, it falls into the moderately-high-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).
Entacapone Impurity 1 (CAS 100644-89-1), molecular formula C16H14O6 and molecular weight 302.28 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Entacapone Impurity 1 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 | C16H14O6 |
| Molecular Weight | 302.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1985 |
Related Entacapone Standards
- Entacapone (CAS 130929-57-6)
- Entacapone EP Impurity A (cis-Entacapone) (CAS 145195-63-7)
- Entacapone Impurity 12 (CAS CATO-C4X-162912)
- Entacapone EP Impurity I (CAS 1364322-42-8)
- Entacapone Impurity 23 (CAS 1185241-19-3)
- Entacapone impurity 19 (CAS CATO-C4X-162919)
- Entacapone Impurity 56 (CAS CATO-C4X-162956)
- Entacapone EP Impurity H (CAS 1150310-15-8)
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- N-(4-Acetamidophenyl)-5-methoxy-4-oxo-4H-pyran-2-carboxamide (CAS 1040664-10-5)
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- 7,8-Dihydroxy-4-(4-methoxyphenyl)-2h-chromen-2-one (CAS 370582-94-8)
- 5,5-Dimethyl-2,4,5,6-tetrahydrocyclopenta[c]pyrrole-1-carboxylic acid (CAS 535170-14-0)
- 1-(3-Chloro-2,6-difluorophenyl)-2,2,2-trifluoroethan-1-ol (CAS 2229258-46-0)
- N-methyl-2-(1H-pyrazol-4-yl)ethan-1-amine (CAS 956949-79-4)
- 4-Bromo-3-(difluoromethyl)-5-hydroxy-2-methylpyridine (CAS 1806834-64-9)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
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