Ethyl4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1h-pyrazole-3-carboxylate CAS 2170134-91-3
| CAS No. | 2170134-91-3 |
| Molecular Formula | C31H33BN2O4 |
| Molecular Weight | 508.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 508.42 g/mol gives Ethyl4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1h-pyrazole-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1h-pyrazole-3-carboxylate (CAS 2170134-91-3), molecular formula C31H33BN2O4 and molecular weight 508.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C31H33BN2O4, Ethyl4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1h-pyrazole-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 508.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Ethyl4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1h-pyrazole-3-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C31H33BN2O4 |
| Molecular Weight | 508.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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- 9-(4-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)naphthalen-1-yl)-9H-carbazole (CAS 2376616-77-0)
- Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-trityl-1H-pyrazole-3-carboxylate (CAS 474711-42-7)
- (((5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-phenylene)bis(methylene))bis(oxy))bis(tert-butyldimethylsilane) (CAS 2836392-76-6)
Recommended Standards
- ((2R,3S,5R)-5-(5-(1,4-Dimethoxy-3-methylnaphthalen-2-yl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3-hydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate (CAS 105785-92-0)
- Bicalutamide Impurity 35 (CAS CATO-C4X-101335)
- Ethyl N-(5-(benzyloxy)-2,4-dichlorophenyl)-N-tosylglycinate (CAS 338961-55-0)
- Crizotinib Impurity 72 (CAS CATO-C4X-102572)
- 4-Methoxy-3-(trifluoromethyl)benzamide (CAS 261951-86-4)
- (S)-9a-(4-fluorophenyl)-8-phenyl-9,9a-dihydropyrido[1,2-a]indole-6,10-dione (CAS 2368851-96-9)
- (1,4-DIBENZYLPIPERAZIN-2-YL)-N,N-DIMETHYLMETHANAMINE (CAS 111760-25-9)
- 5-Bromo-2-methylamino-3-nitro-4-picoline (CAS 155790-01-5)
- 3-Methoxy-6-(trifluoromethyl)picolinic acid (CAS 1214330-74-1)
- 5-Nitro-2-(pyrrolidin-1-yl)benzaldehyde (CAS 30742-59-7)
- 3-(5-Chlorothiophen-2-yl)benzoic acid (CAS 920294-01-5)
- 4-(4-Fluorophenyl)-2-methyl-1-(prop-2-yn-1-yl)-1H-imidazol-5-amine (CAS 1269534-48-6)
- 3-(5-methyl-1H-imidazol-2-yl)aniline dihydrochloride (CAS 1989671-71-7)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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