Ethyl 4-([1,1'-biphenyl]-4-yl)butanoate CAS 6660-36-2
| CAS No. | 6660-36-2 |
| Molecular Formula | C18H20O2 |
| Molecular Weight | 268.35 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.
Ethyl 4-([1,1'-biphenyl]-4-yl)butanoate (CAS 6660-36-2) is a high-purity analytical reference standard with the molecular formula C18H20O2 and a molecular weight of 268.35 g/mol.
Based on its molecular formula C18H20O2, Ethyl 4-([1,1'-biphenyl]-4-yl)butanoate contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 268.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C18H20O2 |
| Molecular Weight | 268.35 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Ethyl Standards
- 6-([1,1'-Biphenyl]-4-yl)hexanoic acid (CAS 5002-16-4)
- N-Biphenyl-4-yl-2-isopropylamino-acetamide (CAS 852406-44-1)
- 3-([1,1'-Biphenyl]-2-yl)-4-amino-1H-1,2,4-triazole-5(4H)-thione (CAS 2108098-94-6)
- 3-([1,1'-Biphenyl]-3-yl)-4-amino-1H-1,2,4-triazole-5(4H)-thione (CAS 2108104-98-7)
- 3-([1,1'-Biphenyl]-4-yl)-4-amino-1H-1,2,4-triazole-5(4H)-thione (CAS 406934-69-8)
- 2-([1,1'-Biphenyl]-4-ylimino)thiazolidin-4-one (CAS 553675-18-6)
- Ethyl 3-([1,1'-biphenyl]-2-yl)-3-oxopropanoate (CAS 1260897-50-4)
- 2-([1,1'-Biphenyl]-2-yloxy)ethyl acrylate (CAS 91442-24-9)
Recommended Standards
- Ethyl 1-(piperidine-4-carbonyl)piperidine-3-carboxylate (CAS 886504-48-9)
- Ethyl 4-(2-(tert-butoxy)-2-oxoethylidene)cyclohexane-1-carboxylate (CAS 218779-74-9)
- Dimethyl 3,3'-disulfanediyl(2s,2's)-bis(2-aminopropanoate) (CAS 444996-03-6)
- Ethyl 4-(cyclohexanecarbonyl)piperazine-1-carboxylate (CAS 676334-70-6)
- 2-Bromo-6-chloroaniline (CAS 59772-49-5)
- N-(3-fluorophenyl)tetrahydro-2H-pyran-4-amine (CAS 1157008-59-7)
- 3-((6-Amino-3-methyl-2,4-dioxo-1-phenyl-1,2,3,4-tetrahydropyrimidin-5-yl)carbamoyl)-2-methylphenyl acetate (CAS 301206-03-1)
- (S)-1-(3-bromophenyl)pentan-1-amine (CAS 1194055-96-3)
- 4-Methyl-N-(thiazol-5-ylmethyl)pyridin-3-amine (CAS 1342793-23-0)
- (3R,4S)-3-Fluoro-4-methoxypyrrolidine (CAS 1932000-24-2)
- 3-Bromo-6-(furan-2-yl)pyrazine-2-carbonitrile (CAS 1351238-40-8)
- ((3-Hydroxyphenyl)imino)dimethyl-lambda6-sulfanone (CAS 1934591-68-0)
- N-(3-Chloro-4-fluorophenyl)-2-(methylthio)nicotinamide (CAS 796092-05-2)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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