3-(Piperidin-4-yloxy)-1-(o-tolyl)isoquinoline CAS 89721-39-1
| CAS No. | 89721-39-1 |
| Molecular Formula | C21H22N2O |
| Molecular Weight | 318.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(Piperidin-4-yloxy)-1-(o-tolyl)isoquinoline (CAS 89721-39-1), molecular formula C21H22N2O and molecular weight 318.41 g/mol, is a CATO reference standard with documented purity and traceability.
3-(Piperidin-4-yloxy)-1-(o-tolyl)isoquinoline (C21H22N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H22N2O |
| Molecular Weight | 318.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related Piperidin Standards
- 1-Phenyl-3-(piperidin-2-ylmethoxy)isoquinoline (CAS 89707-51-7)
- 2-Piperidin-1-yl-7-(2-thienyl)[1,3]thiazolo[4,5-d]pyridazin-4(5H)-one (CAS 1105192-52-6)
- 1031582-05-4 [3-Oxo-6-(piperidin-1-ylcarbonyl)-2,3-dihydro-4H-1,4-benzoxazin-4-yl]acetic acid MFCD14281735 (CAS 1031582-05-4)
- 1-(Piperidin-1-yl)-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)ethan-1-one (CAS 1203671-47-9)
- 5-(4-(Piperidin-1-ylsulfonyl)phenyl)pyrimidin-2-ol (CAS 1261953-01-8)
- 9-Benzyl-6-(2-(piperidin-1-yl)vinyl)-9H-purine (CAS 920503-20-4)
- 1-(Phenyl(piperidin-1-yl)methyl)naphthalen-2-ol (CAS 6278-04-2)
- 2-(4-(Piperidin-1-yl)thiophen-2-yl)ethyl pyrimidine-5-carboxylate (CAS 823794-49-6)
Recommended Standards
- 3-(Furan-2-yl)-N-((1-(tetrahydro-2H-pyran-4-yl)piperidin-4-yl)methyl)acrylamide (CAS 2035001-88-6)
- 3,4-Dimorpholino-4-phenylbutan-2-one (CAS 5455-91-4)
- 3-(4-Methoxyphenyl)-5,6-dimethyl-2-sulfanylthieno[2,3-d]pyrimidin-4(3h)-one (CAS 65234-06-2)
- 3-Boc-7-benzyl-9-oxa-3,7-diazabicyclo[3.3.1]nonane (CAS 335620-98-9)
- 5-Methoxy-4-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1190322-74-7)
- N-Boc-5-phenylpiperidine-3-carboxylic Acid (CAS 885274-99-7)
- (3-Fluorophenyl)trimethylsilane (CAS 7217-41-6)
- 6-Methoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-7-amine (CAS 1116230-89-7)
- 3 - Fluoro - 4 - methylbenzoyl chloride 3-Fluoro-4-methyl-benzoyl chloride 59189-97-8 benzoyl chloride, 3-fluoro-4-methyl- (CAS 59189-97-8)
- Methyl 2-(2-bromo-4-cyano-6-fluorophenyl)acetate (CAS 1805246-46-1)
- VU 6005649 (CAS 2137047-43-7)
- 4-(Oxetan-3-yl)piperidine (CAS 1257294-01-1)
- 2-(6-(4-Methylpiperazin-1-yl)pyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352499-33-2)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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