7-(3,5-Dimethyl-4-methoxyphenyl)-7-oxoheptanoic acid CAS 898765-15-6
| CAS No. | 898765-15-6 |
| Molecular Formula | C16H22O4 |
| Molecular Weight | 278.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-(3,5-Dimethyl-4-methoxyphenyl)-7-oxoheptanoic acid (CAS 898765-15-6) is a high-purity analytical reference standard with the molecular formula C16H22O4 and a molecular weight of 278.34 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 7-(3,5-Dimethyl-4-methoxyphenyl)-7-oxoheptanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 278.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 7-(3,5-Dimethyl-4-methoxyphenyl)-7-oxoheptanoic acid 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 | C16H22O4 |
| Molecular Weight | 278.34 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Dimethyl Standards
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Recommended Standards
- 6-Oxo-6-(4-n-propoxyphenyl)hexanoic acid (CAS 898792-12-6)
- 7-Oxo-7-(4-isopropoxyphenyl)heptanoic acid (CAS 898791-91-8)
- 5-Oxo-5-(4-(pentyloxy)phenyl)pentanoic acid (CAS 898791-97-4)
- 7-Oxo-7-(4-n-propoxyphenyl)heptanoic acid (CAS 898791-79-2)
- Dicarbonylchloro(4-methylpyridine)-rhodium (CAS 18007-38-0)
- 2,5-Dimethyl-1H-benzo[d]imidazole-6-carbaldehyde (CAS 61587-93-7)
- (5-(tert-Butyl)-1H-1,2,4-triazol-3-yl)(4-fluorophenyl)methanamine (CAS 1707585-74-7)
- 7-Bromo-3-chloroimidazo[1,2-a]pyridine (CAS 1019026-31-3)
- 4-Bromo-6-chloronicotinonitrile (CAS 1354021-07-0)
- 3-(Piperidin-4-ylmethyl)imidazolidine-2,4-dione hydrochloride (CAS 1351647-38-5)
- methyl 3-fluoro-1H-pyrrolo[2,3-b]pyridine-4-carboxylate (CAS 1352397-87-5)
- N,4-dimethyl-3-(trifluoromethyl)aniline (CAS 1248956-02-6)
- N-(4-Isobutyl-2-methyloxazol-5-yl)benzamide (CAS 87783-88-8)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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