4,4'-Oxybis(ethynylbenzene) CAS 21368-80-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21368-80-9 |
| Molecular Formula | C16H10O |
| Molecular Weight | 218.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-Oxybis(ethynylbenzene) (CAS 21368-80-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H10O. Molecular weight: 218.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H10O |
| Molecular Weight | 218.25 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Oxybis Standards
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- 2,2-Oxybis-propanoic Acid Diethyl Ester (CAS 6937-25-3)
- 2,2'-Oxybis(N,N-diethylethanamine) (CAS 3030-43-1)
- 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))bis(N-methylethanamine) (CAS 68960-89-4)
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- 2,2’-Oxybis(N-methylaniline) (CAS 76967-82-3)
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Recommended Standards
- 4-(Dimethylamino)-2-methylquinoline-5,8-diol (CAS 88484-74-6)
- 4-Amino-2-((tert-butoxycarbonyl)amino)butanoic acid (CAS 2899-79-8)
- 4-(Cyclohex-2-en-1-yloxy)benzoic acid (CAS 7355-51-3)
- 1-Bromo-4,4-difluorocyclohex-1-ene (CAS 1881332-54-2)
- 551924-38-0 N-(6-tert-Butyl-3-cyano-4,5,6,7-tetrahydro-1-benzothien-2-yl)-3-chloropropanamide MFCD01357700 (CAS 551924-38-0)
- 1,3,7-Trimethylisoquinoline (CAS 73480-88-3)
- 1-(2-Methylquinolin-3-yl)ethanone (CAS 14208-35-6)
- n-(4-Iodophenyl)-2-methyl-1h-imidazole-5-sulfonamide (CAS 1424338-96-4)
- (E)-3-methoxy-4-propoxybenzaldehyde oxime (CAS 571920-77-9)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
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