3-Chloro-6-ethynylpyridazine CAS 160510-68-9
| CAS No. | 160510-68-9 |
| Molecular Formula | C6H3ClN2 |
| Molecular Weight | 138.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 138.55 g/mol gives 3-Chloro-6-ethynylpyridazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Chloro-6-ethynylpyridazine (CAS 160510-68-9), molecular formula C6H3ClN2 and molecular weight 138.55 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Chloro-6-ethynylpyridazine (C6H3ClN2) is characterized by a nitrile group, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H3ClN2 |
| Molecular Weight | 138.55 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-5-ethynylpyrazine (CAS 1196153-73-7)
- 2-Chloro-5-ethynylpyrimidine (CAS 1196156-89-4)
- 5-Chloro-2-ethynylpyrimidine (CAS 1196156-95-2)
- 4-Chloro-2-ethynylpyrimidine (CAS 1196156-98-5)
- 2-Chloro-6-ethynylpyrazine (CAS 1196157-03-5)
- 4-Chloro-6-ethynylpyrimidine (CAS 1211535-06-6)
- Methyl 2-chloro-2-methoxy-acetate (CAS 13157-96-5)
- 2-Chloro-3-ethynylpyrazine (CAS 1374115-59-9)
Recommended Standards
- Chloromethyl 2-methoxyacetate (CAS 156384-38-2)
- H-b-Chloro-Ala-NHOH (F-3380.0250) (CAS 163682-35-7)
- 4-Chloro-pyridine-2-carbonitrile (CAS 19235-89-3)
- 1-chloroethyl methyl carbonate (CAS 80196-03-8)
- Ethyl 3-bromo-4-((2,4-dichlorobenzyl)oxy)-5-ethoxybenzoate (CAS 1706447-53-1)
- 2-Ethyl-2-isobutyramidobutanoic acid (CAS 1421263-51-5)
- (5-Bromopyridin-3-yl)(4-(5-(furan-2-yl)-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone (CAS 1351647-16-9)
- 1-Benzylcyclopropane-1-carbaldehyde (CAS 537707-02-1)
- 4-(Piperidin-2-yl)-2-(trifluoromethyl)pyridine hydrochloride (CAS 1823499-18-8)
- 24804-31-7 CTK4F4429 Ethanedioic acid,calcium salt, hydrate (1:?:?) (CAS 24804-31-7)
- 2-(3-iodocyclobutyl)-5-methyl-thiophene (CAS 2170979-97-0)
- Phenylmethanaminium tetrahydro-2h-pyran-2-carboxylate (CAS 2055119-41-8)
- 2,2,2-Trifluoro-1-(5-methoxypyridin-2-yl)ethan-1-one (CAS 1060801-74-2)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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