1-Ethynyl-4-((4-(phenylethynyl)phenyl)ethynyl)benzene CAS 474458-61-2
| CAS No. | 474458-61-2 |
| Molecular Formula | C24H14 |
| Molecular Weight | 302.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethynyl-4-((4-(phenylethynyl)phenyl)ethynyl)benzene (CAS 474458-61-2) is a high-purity analytical reference standard with the molecular formula C24H14 and a molecular weight of 302.37 g/mol.
Owing to a polycyclic aromatic system, 1-Ethynyl-4-((4-(phenylethynyl)phenyl)ethynyl)benzene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Ethynyl-4-((4-(phenylethynyl)phenyl)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 | C24H14 |
| Molecular Weight | 302.37 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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Recommended Standards
- 1-Bromo-5-(bromomethyl)-4-chloro-2-fluorobenzene (CAS 2091679-86-4)
- 2-({5-phenylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetic acid (CAS 312947-24-3)
- 1-Bromo-4-(bromomethyl)-3-chloro-2-fluorobenzene (CAS 2090530-74-6)
- 2-({6-phenylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetic acid (CAS 457641-35-9)
- 4-Amino-3-(2-bromophenyl)-3-methylbutanoic acid (CAS 1468741-20-9)
- 3-Fluoro-3-(4-methoxyphenyl)-3H-diazirine (CAS 95911-65-2)
- N-(2-Hydroxy-5-methylphenyl)acrylamide (CAS 91950-00-4)
- Methyl 3-((2-aminophenyl)thio)-2-hydroxy-3-phenylpropanoate (CAS 902601-70-1)
- 1,3-Dichloro-2-cyclopropylbenzene (CAS 1227417-84-6)
- 2-diphenylphosphorylphenol (CAS 70127-50-3)
- tert-butyl 4-(tert-butoxycarbonylamino)-4-methyl-piperidine-1-carboxylate (CAS 1187322-34-4)
- 1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1<I>H</I>)-one (CAS 181934-30-5)
- 6-Phenyl-1,2,3,4-tetrahydroquinoline hydrochloride (CAS 1394040-95-9)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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