4,4,5,5-Tetramethyl-2-(1-oxaspiro[5.5]undec-9-en-9-yl)-1,3,2-dioxaborolane CAS 1889268-28-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1889268-28-3 |
| Molecular Formula | C16H27BO3 |
| Molecular Weight | 278.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4,5,5-Tetramethyl-2-(1-oxaspiro[5.5]undec-9-en-9-yl)-1,3,2-dioxaborolane (CAS 1889268-28-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H27BO3. Molecular weight: 278.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H27BO3 |
| Molecular Weight | 278.19 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
Related Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(2-oxaspiro[5.5]undec-9-en-9-yl)-1,3,2-dioxaborolane (CAS 1889270-33-0)
- 2-methyl-2-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl]propanenitrile (CAS 1402390-59-3)
- [4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]thiourea (CAS 2249914-86-9)
- 2-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]cyclopentanol (CAS 1313726-16-7)
- 3-((4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)propan-1-amine (CAS 1346697-30-0)
- 2-((4-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)amino)ethan-1-ol (CAS 1351995-03-3)
- 4,4,5,5-Tetramethyl-2-(2-(propylthio)phenyl)-1,3,2-dioxaborolane (CAS 2377611-93-1)
- 4,4,5,5-Tetramethyl-2-(4-(2-(methylthio)ethyl)phenyl)-1,3,2-dioxaborolane (CAS 2641095-67-0)
Recommended Standards
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- Butylphthalide Impurity 52 (CAS 74459-23-7)
- 2-(2-Hydroxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 312746-96-6)
- 3,4-Dimethyl-1H-indole-6,7-dione (CAS 157583-30-7)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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