1-(4-Ethynylphenyl)adamantane CAS 219831-45-5
| CAS No. | 219831-45-5 |
| Molecular Formula | C18H20 |
| Molecular Weight | 236.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a polycyclic aromatic system, 1-(4-Ethynylphenyl)adamantane is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 236.35 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.
1-(4-Ethynylphenyl)adamantane (CAS 219831-45-5), molecular formula C18H20 and molecular weight 236.35 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H20 |
| Molecular Weight | 236.35 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
Related Ethynylphenyl Standards
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- 5-((3-Ethynylphenyl)amino)-5-oxopentanoic acid (CAS 817638-75-8)
Recommended Standards
- (Z)-hex-3-en-1-yl non-2-ynoate (CAS 68480-29-5)
- 1-(Adamantan-1-yl)-3-propylurea (CAS 73405-14-8)
- (S)-6-((S)-2-hydroxy-6-methylhept-5-en-2-yl)-3-methylcyclohex-2-en-1-one (CAS 95602-94-1)
- 1,1-Methanediyl Bismethanethiosulfonate (CAS 22418-52-6)
- N-((1-((S)-2-Amino-3,3-dimethylbutanoyl)pyrrolidin-2-yl)methyl)-N-isopropylacetamide (CAS 1354028-53-7)
- 3-fluoro-2-iodobenzamide (CAS 1261500-66-6)
- 3-(4-Fluorophenyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1031558-09-4)
- D-erythrose-2- (CAS 83434-88-2)
- Methyl 6-formyl-4-methylnicotinate (CAS 1820906-63-5)
- Losartan Impurity 38 (CAS CATO-C4X-168338)
- 3-Methyl-N-(piperidin-4-yl)-N-propylbutanamide (CAS 1573027-52-7)
- 4,7-diamino-2-methyl-2,3-dihydro-1H-isoindole-1,3-dione (CAS 2868-12-4)
- 1-(4-(3,5-Dimethylphenoxy)phenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 4162-67-8)
- 149471-11-4 Neuropeptide DF2 L-Phenylalaninamide, L-alpha-aspartyl-L-arginyl-L-asparaginyl-L-phenylalanyl-L-leucyl-L-arginyl- Asp-arg-asn-phe-leu-arg-phe-NH2 Aspartyl-arginyl-asparaginyl-phenylalanyl-leucyl-arginyl-phenylalaninamide L-alpha-Aspartyl-L-arginyl-L-asparaginyl-L-phenylalanyl-L-leucyl-L-arginyl-L-phenylalaninamide DF(2) Neuropeptide Drnflrfamide (CAS 149471-11-4)
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