Ferulic Acid Impurity 1 CAS 2931-90-0
| CAS No. | 2931-90-0 |
| Molecular Formula | C9H8O4 |
| Molecular Weight | 180.16 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 Ferulic Acid Impurity 1.
Ferulic Acid Impurity 1 (CAS 2931-90-0) is a certified pharmaceutical impurity reference standard with the molecular formula C9H8O4 and a molecular weight of 180.16 g/mol.
Ferulic Acid Impurity 1 (C9H8O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Ferulic Acid Impurity 1 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 | C9H8O4 |
| Molecular Weight | 180.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ferulic Standards
- Ferulic Acid Impurity 9 (CAS 32811-40-8)
- trans-Ferulic Acid (CAS 537-98-4)
- Ferulic Acid Impurity 2 (CAS 1014-83-1)
- Ferulic Acid (CAS 1135-24-6)
- Ferulic Acid Impurity 10 (CAS 99865-71-1)
- Ferulic Acid Impurity 3 (CAS 948051-11-4)
- Ferulic Acid Methyl Ester (CAS 2309-07-1)
- Ferulic Acid Impurity 2 (CAS 56024-44-3)
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