6-Methyl-7-oxo-1-tosyl-6,7-dihydro-1H-pyrrolo[2,3-c]pyridine-4-boronic Acid Pinacol Ester CAS 1445993-89-4
| CAS No. | 1445993-89-4 |
| Molecular Formula | C21H25BN2O5S |
| Molecular Weight | 428.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Methyl-7-oxo-1-tosyl-6,7-dihydro-1H-pyrrolo[2,3-c]pyridine-4-boronic Acid Pinacol Ester.
CATO supplies 6-Methyl-7-oxo-1-tosyl-6,7-dihydro-1H-pyrrolo[2,3-c]pyridine-4-boronic Acid Pinacol Ester (CAS 1445993-89-4), a certified reference material (molecular formula C21H25BN2O5S, MW 428.31 g/mol) for analytical method development and quality control.
The molecular framework of 6-Methyl-7-oxo-1-tosyl-6,7-dihydro-1H-pyrrolo[2,3-c]pyridine-4-boronic Acid Pinacol Ester (C21H25BN2O5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C21H25BN2O5S |
| Molecular Weight | 428.31 g/mol |
| 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (CAS 1355221-17-8)
- ((S)-1-Carboxy-2-(1-(3,5-dichlorobenzyl)-1H-imidazol-5-yl)ethyl)-L-leucine (CAS 305335-31-3)
- N-(2-(2-Bromoacetyl)-4,5-dimethoxyphenyl)-4-methylbenzenesulfonamide (CAS 886493-98-7)
- (2E)-3-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-N-(3-methoxyphenyl)prop-2-enamide (CAS 477888-76-9)
- 2-Thiomorpholinopyrimidine-5-carboxylic acid (CAS 1707586-55-7)
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- Methyl 3-hexyl-[2,2'-bithiophene]-5-carboxylate (CAS 918826-01-4)
- 4-Methyl-3-(methylsulfinyl)-5-(5-nitrofuran-2-yl)-4H-1,2,4-triazole (CAS 41834-21-3)
- Methyl 5-cyano-5-(2-cyanophenyl)-5-phenylpentanoate (CAS 127999-70-6)
- N-(3-Cyclopropoxy-4-isopropylpyridin-2-yl)methanesulfonamide (CAS 1243468-07-6)
- N,N'-(4,8-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-1,5-diyl)bis(3-chlorobenzamide) (CAS 83721-54-4)
- 2-(2-Aminoethoxy)isoindoline-1,3-dione hydrochloride (CAS 848852-55-1)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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