1,4,6-Trichlorophthalazine CAS 178309-37-0
| CAS No. | 178309-37-0 |
| Molecular Formula | C8H3Cl3N2 |
| Molecular Weight | 233.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1,4,6-Trichlorophthalazine (C8H3Cl3N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, 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 233.48 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1,4,6-Trichlorophthalazine (CAS 178309-37-0), molecular formula C8H3Cl3N2 and molecular weight 233.48 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 1,4,6-Trichlorophthalazine 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.
Physical & Chemical Properties
| Molecular Formula | C8H3Cl3N2 |
| Molecular Weight | 233.48 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.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Trichlorophthalazine Standards
Recommended Standards
- 1,3,6-Trichloro-2,7-naphthyridine (CAS 2578392-33-1)
- 2,4,5-Trichloroquinazoline (CAS 134517-55-8)
- 1,3,7-Trichloroisoquinoline (CAS 21902-41-0)
- 4,7,8-Trichloroquinazoline (CAS 1027775-18-3)
- 2-Cyclopropoxy-N1,N4,N4-trimethylbenzene-1,4-diamine (CAS 1243393-71-6)
- Sodium 5-(tert-butyl)-2-hydroxybenzenesulfonate (CAS 43047-84-3)
- 8-(Aminomethyl)octahydro-2H-pyrano[3,2-b]pyridin-2-one (CAS 1824251-46-8)
- (2-Phenyl-4,5-dihydrooxazole-4,4-diyl)dimethanol (CAS 62203-32-1)
- N-(3-(2-Aminopropyl)phenyl)acetamide (CAS 61208-59-1)
- Budesonide Impurity 35 (CAS 3079028-41-1)
- 1-(3-Bromo-5-fluoro-2-hydroxyphenyl)ethan-1-one (CAS 393-62-4)
- 3,4-Difluorobenzoylacetonitrile (CAS 71682-97-8)
- 4-[4-(2-methylbutan-2-yl)phenoxy]aniline (CAS 328032-81-1)
- Retatrutide (CAS 2381089-83-2)
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