3-chloro-6-(difluoromethyl)pyridazine CAS 1706439-95-3
| CAS No. | 1706439-95-3 |
| Molecular Formula | C5H9ClF2N2 |
| Molecular Weight | 170.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-chloro-6-(difluoromethyl)pyridazine.
3-chloro-6-(difluoromethyl)pyridazine (CAS 1706439-95-3), molecular formula C5H9ClF2N2 and molecular weight 170.59 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/chlorine substitution, 3-chloro-6-(difluoromethyl)pyridazine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.59 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.
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 | C5H9ClF2N2 |
| Molecular Weight | 170.59 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- 3-Chloro-4-hydroxy-5-methylbenzaldehyde (CAS 107356-10-5)
- 6-chloro-2,3-dihydro-1-benzofuran-3-ol (CAS 1154740-97-2)
- 4-chloro-2-(difluoromethyl)pyrimidine (CAS 1261453-07-9)
- 2-Chloro-5-(hydroxymethyl)benzaldehyde (CAS 1288998-81-1)
- 3-Chloro-5-(hydroxymethyl)benzaldehyde (CAS 1289062-81-2)
- 2-Chloro-3-(hydroxymethyl)benzaldehyde (CAS 1289263-62-2)
- 6-Chloro-2-hydroxy-3-methylbenzaldehyde (CAS 1310800-53-3)
- 4-Chloro-3-methoxybenzaldehyde (CAS 13726-16-4)
Recommended Standards
- 3-Chloro-5-methoxybenzaldehyde (CAS 164650-68-4)
- 2-Chloro-5-hydroxy-3-methylbenzaldehyde (CAS 1782405-41-7)
- 5-Chloro-4-hydroxy-2-methylbenzaldehyde (CAS 1556030-28-4)
- 4-Chloro-5-hydroxy-2-methylbenzaldehyde (CAS 1785146-50-0)
- Methyl 10-methylhexadecanoate (CAS 2490-51-9)
- 5-Amino-3-isobutylisoxazole-4-carbonitrile (CAS 1520307-53-2)
- N-(5-Chloro-1,3,4-thiadiazol-2-yl)pivalamide (CAS 1934605-39-6)
- (R)-2-(Boc-amino)-3-methylbutanal (CAS 106391-88-2)
- 4-(3-Chloro-4-methylphenyl)-4-oxobutyric acid (CAS 62903-06-4)
- (2-(Pyrrolidin-1-yl)-4-(trifluoromethyl)thiazol-5-yl)methanamine (CAS 1602308-00-8)
- 7-Iodo-3-methyl-1H-indazole (CAS 1360931-32-3)
- 2-chloro-5-propanoylbenzene-1-sulfonamide (CAS 59814-34-5)
- (S)-1-(2-((tert-Butyldimethylsilyl)oxy)-1-(4-chloro-3-fluorophenyl)ethyl)-4-(2-((1-methyl-1H-pyrazol-5-yl)amino)pyrimidin-4-yl)pyridin-2(1H)-one (CAS 1453854-96-0)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
Why CATO?
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