1-Methylisoquinoline CAS 1721-93-3
| CAS No. | 1721-93-3 |
| Molecular Formula | C10H9N |
| Molecular Weight | 143.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Methylisoquinoline (CAS 1721-93-3) is a high-purity analytical reference standard with the molecular formula C10H9N and a molecular weight of 143.19 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 1-Methylisoquinoline is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 1-Methylisoquinoline 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 | C10H9N |
| Molecular Weight | 143.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Methylisoquinoline Standards
- 4-Methylisoquinoline (CAS 1196-39-0)
- 5-Methylisoquinoline (CAS 62882-01-3)
- 8-methylisoquinoline (CAS 62882-00-2)
- 7-Methylisoquinoline (CAS 54004-38-5)
- 3-methylisoquinoline (CAS 1125-80-0)
- 6-Methylisoquinoline 6-Isopropyl-3-formylindole 6-Isopropylindole-3-carboxaldehyde 6-(1-Methylethyl)-1H-indole-3-carboxaldehyde 42398-73-2 (CAS 42398-73-2)
- 4-Methylisoquinoline 2-oxide (CAS 103261-29-6)
- 3-Methylisoquinoline 2-oxide (CAS 14548-00-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com