1-Methylisoquinoline CAS Number: 1721-93-3
Pharmaceutical Materials 2025-03-02
CAS Number: 1721-93-3
Molecular Formula: C10H9N
Molecular Weight: 143.185
Appearance: White to yellowish liquid or crystal
Melting Point: 10-12°C
Boiling Point: 248°C at 760 mmHg
Usage: Used as an organic synthesis intermediate.
1-Methylisoquinoline, with the CAS number 1721-93-3, is an organic compound belonging to the class of heterocyclic aromatic molecules. It has the chemical formula C10H9N and exists as a yellow liquid or crystalline solid. This compound is primarily used as an organic synthesis reagent due to its reactive aromatic ring and methyl substituent. 1-Methylisoquinoline is known for its solubility in organic solvents such as ethanol, acetone, and benzene, but it is insoluble in water. It finds applications in the pharmaceutical industry and as an intermediate in the synthesis of various chemicals.
| Property | Description |
|---|---|
| Physical Properties | |
| CAS Number | 1721-93-3 |
| Chemical Formula | C10H9N |
| Molecular Weight | 143.185 g/mol |
| Appearance | Yellow liquid or crystalline solid |
| Melting Point | 10-12°C |
| Boiling Point | 126-128°C |
| Density | 1.078 g/cm³ at 25°C |
| Solubility | Insoluble in water, soluble in ethanol, acetone, benzene |
| Chemical Properties | |
| Functional Groups | Aromatic ring, methyl substituent |
| Refractive Index | 1.614 at 20°C |
| Flash Point | 113°C |
| Molecular Polarity | Slightly polar |
| Reactivity | Can undergo substitution, oxidation, and other aromatic reactions |
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