5-(4-tert-Butylphenyl)cyclohexane-1,3-dione CAS 946686-29-9
| CAS No. | 946686-29-9 |
| Molecular Formula | C16H20O2 |
| Molecular Weight | 244.33 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.
5-(4-tert-Butylphenyl)cyclohexane-1,3-dione (CAS 946686-29-9), molecular formula C16H20O2 and molecular weight 244.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(4-tert-Butylphenyl)cyclohexane-1,3-dione (C16H20O2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H20O2 |
| Molecular Weight | 244.33 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related tert Standards
- 4-(4-Tert-butylphenyl)-2-thiophenecarbaldehyde (CAS 343604-16-0)
- 5-(4-Tert-butylphenyl)-2-thiophenecarbaldehyde (CAS 343604-17-1)
- 5-(4-Butylphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1038914-12-3)
- 5-(4-tert-Butylphenyl)-1h-pyrazole-4-carboxylic acid (CAS 1152543-26-4)
- 5-(4-Tert-butylphenyl)furan-2-carboxylic acid (CAS 115933-44-3)
- (4-tert-butylphenyl)magnesium bromide 4-tert-Butylphenylmagnesium bromide 63488-10-8 (CAS 63488-10-8)
- 1-(4-Butylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1099632-14-0)
- 2-(4-tert-Butylphenyl)-4-methyl-3-oxopentanenitrile (CAS 1177093-19-4)
Recommended Standards
- 4-tert-Butyl-2,6-dimethylbenzene-1-sulfonyl fluoride (CAS 567-60-2)
- 5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalene-2,3-dicarbaldehyde (CAS 58848-22-9)
- 4-Isopropyl-2-(5,6,7,8-tetrahydroquinolin-2-yl)-4,5-dihydrooxazole (CAS 2415728-09-3)
- 5-methoxy-3-(2-(pyrrolidin-1-yl)ethyl)-1H-indole (CAS 3949-14-2)
- 2,2-Difluoro-2-(1-hydroxycyclohexyl)acetic acid (CAS 206346-77-2)
- 3-[(2-phenylethyl)carbamoyl]propanoic acid (CAS 1083-55-2)
- 4-[4-(4-methylbenzenesulfonyl)piperazin-1-yl]-4-oxobutanoic acid (CAS 736146-17-1)
- 2-(3,4-Dichlorophenyl)-5-oxotetrahydrofuran-3-carboxylic acid (CAS 1399658-66-2)
- 22(29)Hopaene solution (CAS 1615-91-4)
- Fmoc-Ala-OH (1-13C) (CAS 202326-53-2)
- 1666AF 2-Ethyl-4-methyl-6-piperazin-1-yl-pyrimidine 883540-07-6 C11H18N4 (CAS 883540-07-6)
- Dabigatran Impurity 128 (CAS CATO-C4X-1089128)
- 1-Benzyl 2-methyl (2S,4S)-4-hydroxy-2-methylpyrrolidine-1,2-dicarboxylate (CAS 2306247-47-0)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com