1,4,6,7-Tetrachlorophthalazine CAS 98436-35-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 98436-35-2 |
| Molecular Formula | C8H2Cl4N2 |
| Molecular Weight | 267.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
1,4,6,7-Tetrachlorophthalazine (CAS 98436-35-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H2Cl4N2. Molecular weight: 267.93 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H2Cl4N2 |
| Molecular Weight | 267.93 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.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1,3,6,8-Tetrachloro-2,7-naphthyridine (CAS 27224-97-1)
- 2,3,5,7-Tetrachloroquinoxaline (CAS 2959-05-9)
- 1-(4-Bromophenyl)-2,2-dichloroethanone (CAS 7716-86-1)
- (S)-1-amino-6-methyl-2,3-dihydro-1H-indene-4-carboxylic acid (CAS 1212912-61-2)
- [1,1'-Binaphthalene]-2,2'-diyldimethanol (CAS 3594-94-3)
- [(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl](methyl)amine hydrochloride (CAS 1909316-10-4)
- 5-Phenylnicotinic acid (CAS 10177-12-5)
- 2,6-bis(pyrrolidin-1-yl)aniline (CAS 1172626-83-3)
- 3-((Diisopropylphosphoryl)methyl)benzonitrile (CAS 81373-49-1)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
Why CATO?
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