5-Fluoro-2-methyl-2H-isoindole CAS 69189-20-4
| CAS No. | 69189-20-4 |
| Molecular Formula | C9H8FN |
| Molecular Weight | 149.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Fluoro-2-methyl-2H-isoindole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
5-Fluoro-2-methyl-2H-isoindole (CAS 69189-20-4) is a high-purity analytical reference standard with the molecular formula C9H8FN and a molecular weight of 149.16 g/mol.
Based on its molecular formula C9H8FN, 5-Fluoro-2-methyl-2H-isoindole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 149.16 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.
Physical & Chemical Properties
| Molecular Formula | C9H8FN |
| Molecular Weight | 149.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
- 5-Fluoro-6-methyl-1H-indole (CAS 1000343-16-7)
- 2-(4-Fluoro-3-methylphenyl)acetonitrile (CAS 1000548-41-3)
- 6-Fluoro-3-methyl-1H-indole (CAS 1011484-23-3)
- 5-Fluoro-7-methyl-1H-indole (CAS 1082041-52-8)
- 2-Fluoro-α-methylbenzeneacetonitrile (CAS 1096308-40-5)
- 7-Fluoro-1-methyl-1H-indole (CAS 1146637-25-3)
- 5-fluoro-1-methyl-indole (CAS 116176-92-2)
- 4-Fluoro-N-(prop-2-yn-1-yl)aniline (CAS 123685-60-9)
Recommended Standards
- 5-(Fluoromethyl)piperidine-3,4-diol (CAS 682331-14-2)
- 5-Fluoro-2-methylindole (CAS 399-72-4)
- 4-Fluoro-7-methylindole (CAS 313337-32-5)
- 5-Fluoro-3-methyl-1H-indole (CAS 392-13-2)
- (1Z,3Z)-1,3-bis(((R)-4-isopropyl-4,5-dihydrooxazol-2-yl)methylene)-1,3-dihydroisobenzofuran (CAS 2460673-17-8)
- 1,1,1-Trifluoro-N-isopropylpropan-2-imine (CAS 723294-90-4)
- 4-Phenoxycinnamic Acid (CAS 2215-83-0)
- 5-Pentyl-cyclohexane-1,3-dione (CAS 18456-88-7)
- N-(4-Fluorobenzyl)-4-(heptyloxy)aniline (CAS 1040689-74-4)
- Epinastine Impurity 46 (CAS CATO-C4X-184046)
- 2-(6-Chloro-2,4-difluoro-3-methylphenyl)acetic acid (CAS 1858250-10-8)
- Propoxyphenyl Thiosildenafil (CAS 479073-87-5)
- o-CYMEN-5-OL (CAS 39660-61-2)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
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