2-[(4-Methylphenyl)methylidene]-2,3-dihydro-1H-indene-1,3-dione CAS 15875-51-1
| CAS No. | 15875-51-1 |
| Molecular Formula | C17H12O2 |
| Molecular Weight | 248.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, 2-[(4-Methylphenyl)methylidene]-2,3-dihydro-1H-indene-1,3-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 248.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2-[(4-Methylphenyl)methylidene]-2,3-dihydro-1H-indene-1,3-dione (CAS 15875-51-1), molecular formula C17H12O2 and molecular weight 248.28 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.
As a certified reference material (CRM), 2-[(4-Methylphenyl)methylidene]-2,3-dihydro-1H-indene-1,3-dione 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 | C17H12O2 |
| Molecular Weight | 248.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Methylphenyl Standards
- 2-{[5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}acetic acid (CAS 1105192-49-1)
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- 4-Methyl-2-[(4-methylphenyl)sulfonyl]quinoline (CAS 64789-03-3)
- 5-{[(4-Methylphenyl)sulfanyl]methyl}-2-furoic acid (CAS 915923-20-5)
- Ethyl 5-(2-methylphenyl)-1,3,4-thiadiazole-2-carboxylate (CAS 1986907-98-5)
- N-(4-Methylphenyl)-2-(4-oxo-2-thiazolidinylidene)acetamide (CAS 730951-05-0)
- 2-{2-[(4-methylphenyl)amino]-1,3-thiazol-4-yl}acetic acid 436094-76-7 MS-9548 (CAS 436094-76-7)
- Ethyl 6-(4-methylphenyl)-6-oxohexanoate (CAS 100847-87-8)
Recommended Standards
- tert-Butyl (4-cyano-2-methoxyphenyl)carbamate (CAS 1565609-46-2)
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- Tert-butyl 4-oxo-3,4-dihydro-1,5-naphthyridine-1(2H)-carboxylate (CAS 1561781-37-0)
- 2,6-Diphenylpyrimidin-4-ol (CAS 15969-46-7)
- Nitrilotriacetic acid disodium salt (CAS 15467-20-6)
- n,2-Dimethyl-1,3-benzothiazol-6-amine (CAS 42446-08-2)
- 7-(Hydroxymethyl)quinazolin-4-ol (CAS 323591-34-0)
- 4-Iodo-1-methylpyridin-2(1H)-one (CAS 889865-47-8)
- 2-(Tetrahydrofuran-2-yl)piperidine hemioxalate (CAS 1177347-36-2)
- 2,7-Bis(pyridin-3-ylmethyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 34151-50-3)
- 4-Vinyl-1H-pyrazolo[4,3-c]pyridine (CAS 1374651-95-2)
- (E)-5-(benzo[d][1,3]dioxol-5-ylmethylene)-2-(methylthio)-3-(morpholinomethyl)-3,5-dihydro-4H-imidazol-4-one (CAS 865659-82-1)
- Minoxidil Impurity 12 (CAS 2127354-04-3)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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