1-Ethyl-3-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole CAS 2019997-43-2
| CAS No. | 2019997-43-2 |
| Molecular Formula | C12H21BN2O2 |
| Molecular Weight | 236.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-Ethyl-3-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
1-Ethyl-3-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole (CAS 2019997-43-2), molecular formula C12H21BN2O2 and molecular weight 236.12 g/mol, is a CATO reference standard with documented purity and traceability.
1-Ethyl-3-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole (C12H21BN2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C12H21BN2O2 |
| Molecular Weight | 236.12 g/mol |
| Appearance | 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1,3,5-Trimethylpyrazole-4-boronic Acid Pinacol Ester (CAS 844891-04-9)
- 1-Ethyl-4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2223054-75-7)
- (2,6-Bis((dimethylamino)methyl)phenyl)boronic acid (CAS 89291-18-9)
- 1-Propyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 934586-51-3)
- Ethyl 3-(4-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (CAS 338404-92-5)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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