2-(3,5-Dichloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 1218790-28-3
| CAS No. | 1218790-28-3 |
| Molecular Formula | C15H21BCl2O3 |
| Molecular Weight | 331.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(3,5-Dichloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1218790-28-3) is a high-purity analytical reference standard with the molecular formula C15H21BCl2O3 and a molecular weight of 331.04 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-(3,5-Dichloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 331.04 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H21BCl2O3 |
| Molecular Weight | 331.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
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Recommended Standards
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- (R)-1-(3,5-Dimethoxyphenyl)propan-1-amine (CAS 1213087-13-8)
- 3-Bromo-5-nitro-N-(1-(thiazol-2-yl)ethyl)pyridin-2-amine (CAS 1394793-59-9)
- Iodomethyl isopropyl carbonate (CAS 258841-42-8)
- 3-(5-Bromo-2-fluorophenyl)-2-cyanopropionic Acid (CAS 2044706-91-2)
- Amino-PEG2-C2-acid (CAS 791028-27-8)
- 3-Bromo-6-methylpyridin-2-ol (CAS 374633-33-7)
- 3-Hydroxy-6,6-dimethyl-1-oxo-1,2,5,6,7,8-hexahydroisoquinoline-4-carbonitrile (CAS 890023-13-9)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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