4,4,5,5-Tetramethyl-2-(phenylethynyl)-1,3,2-dioxaborolane CAS 159087-45-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 159087-45-3 |
| Molecular Formula | C14H17BO2 |
| Molecular Weight | 228.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4,5,5-Tetramethyl-2-(phenylethynyl)-1,3,2-dioxaborolane (CAS 159087-45-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H17BO2. Molecular weight: 228.09 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H17BO2 |
| Molecular Weight | 228.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
Related Tetramethyl Standards
- 5-(Tetramethyl-1,3,2-dioxaborolan-2-yl)pentanoic acid (CAS 1870019-79-6)
- Ethyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propanoate (CAS 302577-73-7)
- Methyl 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)butanoate (CAS 2222868-64-4)
- 6-(Tetramethyl-1,3,2-dioxaborolan-2-yl)hexan-1-ol (CAS 1361022-69-6)
- 4,4,5,5-Tetramethyl-2-(tetrahydro-2h-thiopyran-4-yl)-1,3,2-dioxaborolane (CAS 1264198-70-0)
- 4,4,5,5-tetramethyl-2-(3-methylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 885692-91-1)
- 4,4,5,5-tetramethyl-2-(4-methylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 635305-48-5)
- 4,4,5,5-tetramethyl-2-(4-methylthiophen-3-yl)-1,3,2-dioxaborolane (CAS 476620-20-9)
Recommended Standards
- 8-Bromo-1,2,3,4-tetrahydroisoquinolin-6-ol (CAS 1579518-74-3)
- 3-Bromo-1-(cyclopropylmethyl)pyridin-2(1h)-one (CAS 1602551-71-2)
- 7-Bromo-3,4-dihydro-4-methyl-2H-1,4-benzoxazine (CAS 154264-95-6)
- 3-phenyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridine-6-carboxylic acid (CAS 1525159-29-8)
- 4-Bromo-5-chloro-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190318-30-9)
- SYH2092A-013205 (CAS CATO-CPTD788851)
- 3-(Benzenesulfinyl)-3-phenylpropanoic acid (CAS 1253528-16-3)
- 1-(2,4-Dichlorobenzyl)-3-phenyl-1H-pyrazole-4-carbaldehyde (CAS 312275-55-1)
- Cyclopent-3-en-1-ylmethanamine (CAS 4492-42-6)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com