(3-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxy]-propyl)-carbamic acid tert-butyl ester CAS 1201790-19-3
| CAS No. | 1201790-19-3 |
| Molecular Formula | C20H32BNO5 |
| Molecular Weight | 377.28 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.
(3-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxy]-propyl)-carbamic acid tert-butyl ester (CAS 1201790-19-3), molecular formula C20H32BNO5 and molecular weight 377.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxy]-propyl)-carbamic acid tert-butyl ester (C20H32BNO5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 377.28 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H32BNO5 |
| Molecular Weight | 377.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Tetramethyl Standards
- Methyl-2-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxy-]-ethyl-carbamic acid tert-butyl ester (CAS 1505515-75-2)
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- 7-{[(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl]oxy}-2H-1-benzopyran-2-one CBBE (CAS 1522117-80-1)
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Recommended Standards
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- Methyl 1-(2,6-dinitro-4-(trifluoromethyl)phenyl)piperidine-4-carboxylate (CAS 303144-40-3)
- 7-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole (CAS 2121513-33-3)
- 1-(2,2-dichlorocyclopropyl)ethan-1-one (CAS 61971-73-1)
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- 4-Amino-1,2,4-triazolidine-3,5-dione (CAS 21531-96-4)
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