4,4,5,5-Tetramethyl-2-(1,1a,6,6a-tetrahydrocyclopropa[a]inden-5-yl)-1,3,2-dioxaborolane CAS 2621938-86-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2621938-86-9 |
| Molecular Formula | C16H21BO2 |
| Molecular Weight | 256.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4,5,5-Tetramethyl-2-(1,1a,6,6a-tetrahydrocyclopropa[a]inden-5-yl)-1,3,2-dioxaborolane (CAS 2621938-86-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H21BO2. Molecular weight: 256.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H21BO2 |
| Molecular Weight | 256.15 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.) | 2001 |
Related Tetramethyl Standards
- 3-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propan-1-ol (CAS 1000802-50-5)
- 1-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propan-2-ol (CAS 1346819-38-2)
- Methyl 6-(tetramethyl-1,3,2-dioxaborolan-2-yl)hexanoate (CAS 1516934-00-1)
- 4,4,5,5-Tetramethyl-2-(4-phenylbut-1-yn-1-yl)-1,3,2-dioxaborolane (CAS 159087-44-2)
- 4,4,5,5-Tetramethyl-2-(1-(4-vinylphenyl)vinyl)-1,3,2-dioxaborolane (CAS 2559765-23-8)
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,8-naphthyridine (CAS 1036379-05-1)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,6-naphthyridine (CAS 1313762-04-7)
- 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)quinazoline (CAS 1316275-46-3)
Recommended Standards
- 4-Methylumbelliferyl phosphate (CAS 3368-04-5)
- 2-(3,4-Dihydronaphthalen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2361221-57-8)
- 4-Bromomethyl-1-methanesulfonyl-piperidine (CAS 1082786-45-5)
- 1-(5-Bromo-1,3-thiazol-2-yl)piperidine (CAS 933705-29-4)
- (2S)-(3S)-3-((tert-Butoxycarbonyl)amino)-2-oxo-1-phenylbutyl 2-aminopropanoate (CAS 18670-98-9)
- spiro[3,4-dihydro-2H-isoquinoline-1,1'-cyclopropane];hydrochloride (CAS 2250243-32-2)
- 5-((Dimethylamino)methyl)-2-ethoxybenzaldehyde hydrochloride (CAS 1185304-90-8)
- Lincomycin impurity 39 (CAS CATO-C4X-134239)
- 2-Bromoethylamine (CAS 107-09-5)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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