7,8-Difluoroisoquinoline CAS 475994-57-1
| CAS No. | 475994-57-1 |
| Molecular Formula | C9H5F2N |
| Molecular Weight | 165.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 7,8-Difluoroisoquinoline 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.
7,8-Difluoroisoquinoline (CAS 475994-57-1), molecular formula C9H5F2N and molecular weight 165.14 g/mol, is a CATO reference standard with documented purity and traceability.
7,8-Difluoroisoquinoline (C9H5F2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H5F2N |
| Molecular Weight | 165.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoroisoquinoline Standards
- 6,7-Difluoroisoquinoline (CAS 1202006-80-1)
- 5,7-difluoroisoquinoline (CAS 1369186-67-3)
- 6,8-difluoroisoquinoline (CAS 1499818-92-6)
- 5,8-difluoroisoquinoline (CAS 1895191-24-8)
- 3,5-Difluoroisoquinoline (CAS 2386581-71-9)
- 3,6-Difluoroisoquinoline (CAS 2385647-77-6)
- 3,7-Difluoroisoquinoline (CAS 82455-44-5)
- 3,8-Difluoroisoquinoline (CAS 2385937-43-7)
Recommended Standards
- 5,7-Difluoroquinoline (CAS 34522-72-0)
- D-Oxime Ribose (CAS 6272-50-0)
- 5,6-difluoropyridine-3-carboxylic acid (CAS 851386-33-9)
- Ethyl 3-amino-4,4-difluorobut-2-enoate (CAS 81982-54-9)
- 1,3,5-Triazin-2-amine,4-(1,1-dimethylethyl)-6-methoxy- 175204-54-3 CTK4D5617 (CAS 175204-54-3)
- 2-Fluoro-4-(trifluoromethyl)pyridine-3-methanol (CAS 1227512-32-4)
- 4-Ethynylthiazole-2-carbaldehyde (CAS 1566737-82-3)
- 5,6-Dibromo-4-(difluoromethyl)nicotinic acid (CAS 1804446-64-7)
- 3-((4-Chlorophenyl)sulfonyl)-2-imino-10-methyl-1-propyl-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 573694-78-7)
- N-Methyl-1-(quinoxalin-5-yl)methanamine (CAS 933751-81-6)
- 5,5-dimethylazepan-2-one (CAS 62596-04-7)
- 2-Chloro-9-cyclobutyl-8,9-dihydro-5H-pyrimido[4,5-b][1,4]diazepin-6(7H)-one (CAS 1062244-39-6)
- 1-tert-Butyl 2-methyl cis-4-hydroxypiperidine-1,2-dicarboxylate (CAS 181269-87-4)
- Neuropeptide VF (124-131) (human) (CAS 311309-27-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com