Oryzanol Impurity 7 CAS 786680-88-4
| CAS No. | 786680-88-4 |
| Molecular Formula | C38H56O4 |
| Molecular Weight | 576.85 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 Oryzanol Impurity 7.
Oryzanol Impurity 7 (CAS 786680-88-4) is a certified pharmaceutical impurity reference standard with the molecular formula C38H56O4 and a molecular weight of 576.85 g/mol.
The molecular framework of Oryzanol Impurity 7 (C38H56O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Oryzanol Impurity 7 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 | C38H56O4 |
| Molecular Weight | 576.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Oryzanol Standards
- Oryzanol Impurity 7 (CAS 20972-07-0)
- Oryzanol Impurity 14 (CAS 106774-77-0)
- Oryzanol Impurity 16 (CAS 286011-30-1)
- Oryzanol Impurity 8 (CAS 20972-08-1)
- Oryzanol Impurity 13 (CAS 117857-70-2)
- Oryzanol impurity 15 (CAS 286011-35-6)
- Oryzanol Impurity 17 (CAS 286011-27-6)
- Oryzanol A (Cycloartenyl Ferulate) (CAS 21238-33-5)
Recommended Standards
- Eleutheroside A (CAS 474-58-8)
- Triphenyl(4-(9-phenyl-9H-fluoren-9-yl)phenyl)silane (CAS 937082-80-9)
- α-Septithiophene (CAS 86100-63-2)
- TCO-PEG3-amide-C3-triethoxysilane (CAS 2250217-32-2)
- Mirogabalin Impurity 60 (CAS CATO-C4X-292460)
- Eltrombopag Impurity 93 (CAS CATO-C4X-119893)
- Morinidazole Impurity 5 (CAS CATO-C4X-21965)
- 3-Oxo-1-[4-(trifluoromethoxy)phenyl]cyclobutanecarbonitrile (CAS 1432048-72-0)
- 7-Chloro-2-methyl-3,4-dihydro-1H-benzo[c]azepin-5(2H)-one (CAS 1503365-73-8)
- Dinitro-L-Tyrosine (CAS 17360-11-1)
- (1,4-Diazepan-1-yl)(2,5-dichlorophenyl)methanone hydrochloride (CAS 1595111-40-2)
- N-Benzyl-2-(1-(isoquinolin-1-yl)ethyl)hydrazinecarbothioamide (CAS 87555-53-1)
- Budesonide Impurity 66 (CAS CATO-C4X-138966)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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