2,2,4,6,7-Pentamethyl-3-phenyl-2,3-dihydrobenzofuran CAS 142874-60-0
| CAS No. | 142874-60-0 |
| Molecular Formula | C19H22O |
| Molecular Weight | 266.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, 2,2,4,6,7-Pentamethyl-3-phenyl-2,3-dihydrobenzofuran is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 266.38 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).
2,2,4,6,7-Pentamethyl-3-phenyl-2,3-dihydrobenzofuran (CAS 142874-60-0) is a high-purity analytical reference standard with the molecular formula C19H22O and a molecular weight of 266.38 g/mol.
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 | C19H22O |
| Molecular Weight | 266.38 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Pentamethyl Standards
- 1,1,3,5,5-Pentamethyl-3-phenyl-1lambda3,5lambda3-trisiloxane (CAS 17962-34-4)
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- 1,1,1,3,3-Pentamethyl-3-(3-(oxiran-2-ylmethoxy)propyl)disiloxane (CAS 18044-44-5)
- 1,1,1,3,3-Pentamethyl-3-octyldisiloxane (CAS 180006-15-9)
- 1,3,4,7,9-Pentamethyl-1,4-dihydro-[1,2,4]triazino[3,4-f]purine-6,8(7H,9H)-dione (CAS 898412-83-4)
- 1,4,4,6,7-Pentamethyl-2-phenyl-1,4-dihydroquinoline (CAS 6971-31-9)
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- 2',2',3,6',6'-Pentamethyl-[1,4'-bipiperidin]-4-one (CAS 400073-77-0)
Recommended Standards
- (4-(Tert-butyl)-2,6-dimethylphenyl)(phenyl)methanone (CAS 14252-18-7)
- 5,5'-Disulfanediyldipentanoic acid (CAS 14310-39-5)
- (αS,βS)-α,β-Diphenyl-1-pyrrolidineethanamine (CAS 1416133-22-6)
- (S)-N,1-Dibenzylpyrrolidin-3-amine (CAS 145223-69-4)
- 1-(3,4-Dimethylphenyl)-4-isocyanato-2-pyrrolidinone (CAS 1082350-64-8)
- Benzyl 4-((2-chloro-N-cyclopropylacetamido)methyl)piperidine-1-carboxylate (CAS 1353954-64-9)
- 2-Chloro-N-(3-fluoro-4-morpholinobenzyl)acetamide (CAS 1423024-98-9)
- 2-((6,7-Dimethoxyquinazolin-4-yl)amino)acetic acid (CAS 886500-05-6)
- Ethyl 8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indole-2-carboxylate (CAS 58038-66-7)
- 1-(4-Methanesulfonyl-2-nitrophenyl)piperazine hydrochloride (CAS 1172263-55-6)
- (r)-2-((Tert-butoxycarbonyl)amino)-3-(isoquinolin-5-yl)propanoic acid (CAS 1354970-47-0)
- 5-(Hydroxymethyl)-1,2,4-oxadiazole-3-carboxamide (CAS 1185320-27-7)
- (1R,2R,4S)-Bicyclo[2.2.1]heptan-2-amine (CAS 130463-97-7)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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