(R)-1-(Pentan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole CAS 1940180-74-4
| CAS No. | 1940180-74-4 |
| Molecular Formula | C14H25BN2O2 |
| Molecular Weight | 264.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-1-(Pentan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1940180-74-4) is a high-purity analytical reference standard with the molecular formula C14H25BN2O2 and a molecular weight of 264.17 g/mol.
(R)-1-(Pentan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (C14H25BN2O2) contains an amide group, a carboxylic acid 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (R)-1-(Pentan-2-yl)-4-(4,4,5,5-tetramethyl-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 | C14H25BN2O2 |
| Molecular Weight | 264.17 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 |
Related R Standards
- (S)-1-(Pentan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1940180-76-6)
- N-(Pentan-3-yl)-1-phenylcyclopentane-1-carboxamide (CAS 1023858-01-6)
- N-(Pentan-2-yl)-1-phenylcyclopentane-1-carboxamide (CAS 897311-84-1)
- Tri(pentan-2-yl) borate (CAS 40589-08-0)
- (1-(Pentan-3-yl)-1h-pyrazol-3-yl)methanesulfonyl chloride (CAS 1341976-88-2)
- 2-(Pentan-2-yl)anthracene-9,10-dione (CAS 75931-61-2)
- 2,5-Bis(pentan-3-ylamino)cyclohexa-2,5-diene-1,4-dione (CAS 865078-82-6)
- 4-(Pentan-3-ylamino)-1H-pyrrolo[2,3-b]pyridine-5-carboxamide (CAS 920959-66-6)
Recommended Standards
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- 4-Amino-3-nitrophenylsulfur pentafluoride (CAS 197385-06-1)
- 2,6-Dichloro-N-(tetrahydro-2H-thiopyran-3-yl)pyrimidin-4-amine (CAS 1880415-07-5)
- 4-(2-(2-Chloro-4-(4,6-diamino-2,2-dimethyl-1,3,5-triazin-1(2H)-yl)phenoxy)acetamido)benzene-1-sulfonyl fluoride (CAS 20110-65-0)
- 1-((2-Methylbenzyl)thio)butan-2-one (CAS 1344011-79-5)
- 2-Pentylidenecyclohexanone (CAS 25677-40-1)
- Prop-2-yn-1-yl (1-((2,2-difluorobenzo[d][1,3]dioxol-5-yl)methyl)-2-oxo-1,2-dihydropyridin-3-yl)carbamate (CAS 400084-67-5)
- tert-butyl (3S)-3-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]pyrrolidine-1-carboxylate (CAS 1175273-55-8)
- 8-Chloro-6-cyanoimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 1221792-13-7)
- Amlodipine Impurity N13 (CAS 70677-78-0)
- 3-Bromo-4-(bromomethyl)pyridine (CAS 120277-16-9)
- 2-fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 2387001-46-7)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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