1,4-Dichloro-6,7-difluorophthalazine CAS 945599-38-2
| CAS No. | 945599-38-2 |
| Molecular Formula | C8H2Cl2F2N2 |
| Molecular Weight | 235.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1,4-Dichloro-6,7-difluorophthalazine (C8H2Cl2F2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 235.02 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1,4-Dichloro-6,7-difluorophthalazine (CAS 945599-38-2), molecular formula C8H2Cl2F2N2 and molecular weight 235.02 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H2Cl2F2N2 |
| Molecular Weight | 235.02 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 DMSO, DMF, methanol |
| 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.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 2,4-dichloro-5-nitrobenzamide (CAS 101421-03-8)
- 2,4-Dichloro-6-nitrobenzamide (CAS 1803726-83-1)
- 2,3-Dichloro-4-nitrobenzamide (CAS 1803805-60-8)
- 3,4-Dichloro-2-nitrobenzamide (CAS 1803805-62-0)
- 3,5-Dichloro-4-nitrobenzamide (CAS 1804897-14-0)
- 2,5-Dichloro-4-nitrobenzamide (CAS 1806304-85-7)
- 3,6-Dichloro-2-nitrobenzamide (CAS 1806356-61-5)
- 2,3-Dichloro-6-nitrobenzamide (CAS 1806367-56-5)
Recommended Standards
- 1,4-Dichloro-5,8-difluorophthalazine (CAS 215870-99-8)
- 2,3-Dichloro-6,7-difluoroquinoxaline (CAS 91895-30-6)
- 1-(4-Iodo-1H-pyrrol-2-yl)ethanone (CAS 51333-65-4)
- 2,4-Dichloro-5,6-difluoroquinazoline (CAS 2205403-97-8)
- 7-Isopropyl-4,4-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 1268144-17-7)
- 1,2-Dimethyl-1,1,2,2-tetraphenyldisilane (CAS 1172-76-5)
- (S)-5-[Diphenyl[(trimethylsilyl)oxy]methyl]-5,6-dihydro-2-(2,3,4,5,6-pentafluorophenyl)-1,2,4-triazolo[3,4-a]isoquinolin-2-ium Tetrafluoroborate (CAS 1710476-23-5)
- Natamycin Impurity 13 (CAS CATO-C4X-204013)
- 5-methyl-7-nitroindoline-2,3-dione (CAS 90418-79-4)
- Methyl 1-(((4-amino-4h-1,2,4-triazol-3-yl)thio)methyl)-1h-pyrazole-3-carboxylate (CAS 925580-03-6)
- Monomethyl Succinate (CAS 3878-55-5)
- (4-Amino-1H-pyrazol-3-yl)(thiomorpholino)methanone (CAS 1343238-27-6)
- 1-(4-Hydroxybenzofuran-2-yl)ethanone (CAS 23295-57-0)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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