3,5,6-Trichloro-N,N-diethylpyridazin-4-amine CAS 67370-21-2
| CAS No. | 67370-21-2 |
| Molecular Formula | C8H10Cl3N3 |
| Molecular Weight | 254.54 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.
3,5,6-Trichloro-N,N-diethylpyridazin-4-amine (CAS 67370-21-2) is a high-purity analytical reference standard with the molecular formula C8H10Cl3N3 and a molecular weight of 254.54 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 3,5,6-Trichloro-N,N-diethylpyridazin-4-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H10Cl3N3 |
| Molecular Weight | 254.54 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 5-Chloro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 2096339-55-6)
- N-Methyl-2-(2,4,6-trichlorophenoxy)ethanamine (CAS 99914-38-2)
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- N-allyl-1-(4-nitrophenyl)piperidine-4-carboxamide (CAS 303144-45-8)
- Ethyl 5-bromo-2-chloronicotinate (CAS 1214332-67-8)
- 5,8-Difluoro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-boronic Acid Pinacol Ester (CAS 1221502-87-9)
- 1,3-Dibromo-2-methoxy-5-nitrobenzene (CAS 31106-74-8)
- tert-Butyl (2-(4-methylpiperidin-4-yl)ethyl)carbamate (CAS 1374654-40-6)
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