1-Methoxy-4-((4-propylphenyl)ethynyl)benzene CAS 39969-26-1
| CAS No. | 39969-26-1 |
| Molecular Formula | C18H18O |
| Molecular Weight | 250.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene.
1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (CAS 39969-26-1), molecular formula C18H18O and molecular weight 250.33 g/mol, is a CATO reference standard with documented purity and traceability.
1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (C18H18O) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene 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 | C18H18O |
| Molecular Weight | 250.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1968 |
Related Methoxy Standards
- 1-(3-Methoxy-4-(pentyloxy)phenyl)propan-1-one (CAS 1443307-06-9)
- 1-(4-Methoxy-3-(pentyloxy)phenyl)propan-1-one (CAS 1443310-26-6)
- 4-[2-(4-Methoxy-4-methylpentan-2-ylidene)hydrazin-1-yl]-2,6-dimethylpyrimidine (CAS 1955564-17-6)
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- 1-[3-(3-Methoxy-phenoxy)-propyl]-piperazine (CAS 401802-32-2)
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Recommended Standards
- 1-Ethoxy-4-((4-ethylphenyl)ethynyl)benzene (CAS 258283-96-4)
- 2-((1R,5S)-5-Methyl-4-(3-oxobutyl)cyclohept-3-en-1-yl)acrylic acid (CAS 68799-38-2)
- 1-Cyclohexene-1-carboxylic acid, 4-(1,5-dimethyl-3-oxo-1-hexenyl)-, [R-(E)]- (CAS 93888-59-6)
- 2-(2,2-Diethoxyethoxy)-1,1-diethoxyethane (CAS 56999-16-7)
- 1,6-Naphthyridine, 5-chloro-2-ethynyl- (CAS 2498795-88-1)
- 5-amino-1H-indole-2-carboxylic acid (CAS 152213-40-6)
- 3-amino-5,5-dimethyloxolan-2-one (CAS 13594-33-7)
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- (1S,2S,4S,5R)-1-(3,5-bis(trifluoromethyl)benzyl)-2-((R)-hydroxy(quinolin-4-yl)methyl)-5-vinylquinuclidin-1-ium chloride (CAS 2260606-75-3)
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