4-Ethynyl-4'-pentyl-1,1'-Biphenyl CAS 80563-43-5
| CAS No. | 80563-43-5 |
| Molecular Formula | C19H20 |
| Molecular Weight | 248.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Ethynyl-4'-pentyl-1,1'-Biphenyl is closely related to a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Ethynyl-4'-pentyl-1,1'-Biphenyl (CAS 80563-43-5), molecular formula C19H20 and molecular weight 248.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Ethynyl-4'-pentyl-1,1'-Biphenyl (C19H20) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 248.36 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 4-Ethynyl-4'-pentyl-1,1'-Biphenyl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H20 |
| Molecular Weight | 248.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
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Recommended Standards
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- 4-Hydroxy-3-methyl-2H-chromen-2-one (CAS 15074-17-6)
- 2-n-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)-benzimidazole-d3 (CAS 1185154-60-2)
- 4-(3-(Trifluoromethyl)phenyl)-3H-1,2,4-triazole-3,5(4H)-dione (CAS 89676-71-1)
- 2-((5,5-Dimethyl-1,4,5,6-tetrahydropyrimidin-2-yl)thio)acetic acid (CAS 942348-24-5)
- 4-(Hex-1-yn-1-yl)-2-phenylbenzofuran (CAS 863871-01-6)
- tert-Butyl 2-(bis(2-hydroxyethyl)amino)acetate (CAS 660440-94-8)
- 1-(Bis(4-(trifluoromethyl)phenyl)methyl)piperazine (CAS 104523-09-3)
- n1,n1,2,2-Tetramethyl-n3-(thiophen-2-ylmethyl)propane-1,3-diamine (CAS 1019504-60-9)
- 3'-Hydroxy-4'-methylacetophenone (CAS 33414-49-2)
- (Glu9)-Exenatide (2-39) trifluoroacetate salt (CAS 196109-34-9)
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