1-Methyl-4-(4,4,5-trimethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole CAS 1263180-39-7
| CAS No. | 1263180-39-7 |
| Molecular Formula | C9H15BN2O2 |
| Molecular Weight | 194.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-Methyl-4-(4,4,5-trimethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1263180-39-7), a certified reference material (molecular formula C9H15BN2O2, MW 194.04 g/mol) for analytical method development and quality control.
Structurally, 1-Methyl-4-(4,4,5-trimethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (C9H15BN2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 194.04 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1-Methyl-4-(4,4,5-trimethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H15BN2O2 |
| Molecular Weight | 194.04 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1990 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- (4-bromo-2-fluorophenyl)methanesulfonyl fluoride (CAS 1240528-68-0)
- (E)-N-Butylbutan-1-imine (CAS 130716-87-9)
- 2-Ethynyl-4-methoxypyrimidine (CAS 161489-04-9)
- 4-Ethyl-3-(o-tolyl)-1h-pyrazol-5-amine (CAS 1187561-50-7)
- 2-Amino-1-(3-chloro-2-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094279-46-5)
- 2,5-Dibromo-4-(chloromethyl)thiazole (CAS 934236-33-6)
- (22E)-Ergosta-4,6,8(14),22-tetraen-3-one (CAS 19254-69-4)
- 6-Chloro-N-(4-chlorophenyl)-2-methyl-4-pyrimidinamine (CAS 856976-05-1)
- 2-Chloropropane-1,3-Diol (CAS 497-04-1)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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