3-Chloro-6-phenylpyridazin-4(1H)-one CAS 89868-13-3
| CAS No. | 89868-13-3 |
| Molecular Formula | C10H7ClN2O |
| Molecular Weight | 206.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Chloro-6-phenylpyridazin-4(1H)-one (CAS 89868-13-3) is a high-purity analytical reference standard with the molecular formula C10H7ClN2O and a molecular weight of 206.63 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-Chloro-6-phenylpyridazin-4(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 3-Chloro-6-phenylpyridazin-4(1H)-one 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 | C10H7ClN2O |
| Molecular Weight | 206.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 4-Chloro-1-napthalenecarboxylic Acid (CAS 1013-04-3)
- 6-Chloro-2-(pyridin-2-yl)pyrimidin-4-amine (CAS 1014720-73-0)
- 2-Chloro-6-(1h-imidazol-1-yl)benzaldehyde (CAS 1021240-96-9)
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Recommended Standards
- 3-Chloro-4-(1-imidazolyl)benzaldehyde (CAS 870837-48-2)
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- 3-(4-Chlorophenyl)pyrazin-2(1H)-one (CAS 88066-92-6)
- 4-(3-Chlorophenyl)-1H-imidazole-2-carbaldehyde (CAS 944897-99-8)
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- Methyl 3-fluoro-4-formylbenzoate (CAS 74733-25-8)
- 1-(4-Fluorophenyl)-5-methyl-1H-pyrazole-4-carbohydrazide (CAS 618092-48-1)
- (2-(2,3-Dimethylphenyl)cyclopropyl)methanamine (CAS 1343103-15-0)
- 4-(Difluoromethyl)-6-hydroxy-2-iodonicotinaldehyde (CAS 1807005-40-8)
- 5-Isopropyl-6,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 170886-65-4)
- 1-Heptylpiperidin-4-ol (CAS 264229-47-2)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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