3-Chloro-5,6-dimethylpyridazine-4-carbonitrile CAS 93824-72-7
| CAS No. | 93824-72-7 |
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 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-5,6-dimethylpyridazine-4-carbonitrile (CAS 93824-72-7), molecular formula C7H6ClN3 and molecular weight 167.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 3-Chloro-5,6-dimethylpyridazine-4-carbonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 167.60 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 | C7H6ClN3 |
| Molecular Weight | 167.60 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1000340-38-4)
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1000340-80-6)
- 5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine (CAS 1000577-90-1)
- 5-Chloro-1H-indazol-6-amine (CAS 100960-35-8)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1020036-37-6)
- 7-Chloro-1H-benzo[d]imidazol-5-amine (CAS 10597-54-3)
- 6-Chloro-1H-benzo[d]imidazol-4-amine (CAS 10597-55-4)
- 2-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060816-67-2)
Recommended Standards
- 3-Chloro-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carbonitrile (CAS 2114928-39-9)
- 3-Chloropyrrolo[1,2-a]pyrimidin-8-amine (CAS 2573216-40-5)
- 3-Chloro-4-hydrazinylbenzonitrile (CAS 254880-25-6)
- 4,5-Diamino-2-chlorobenzonitrile (CAS 497147-90-7)
- (E)-ethyl 2-cyano-2-(1,2,5-trimethylpiperidin-4-ylidene)acetate (CAS 103660-71-5)
- 2-Chloro-1,1-Bis(4-Chlorophenyl)-2,2-Difluoro-Ethanol (CAS 1428-03-1)
- 5-Methoxyquinolin-3-amine (CAS 881668-93-5)
- 5-Ethyl-1,2-dihydro-3H-pyrrolo[1,2-c]imidazol-3-one (CAS 74583-37-2)
- 2-((Benzo[d]oxazol-2-ylthio)methyl)-5-hydroxy-4H-pyran-4-one (CAS 730986-10-4)
- 3-(2-(4-Bromophenyl)imidazo[1,2-a]pyridin-3-yl)acrylic acid (CAS 824413-88-9)
- 594-31-0 Antimony, dichlorotriphenyl- Dichlorotriphenylantimony Antimony, triphenyldichloride BRN 4142072 Dichlorid trifenylantimonicny [Czech] Dichlorotriphenylstibine EINECS 209-834-1 NSC 179782 NSC 432 Stibine, triphenyl-, dichloride (6CI) Triphenylantimony dichloride Triphenylstibine dichloride Dichlorid trifenylantimonicny (CAS 594-31-0)
- 1-(2-Fluoro-6-nitrophenyl)ethanone (CAS 1214377-22-6)
- 3-(2-Chloro-6-fluorophenyl)-N-(4-methoxybenzyl)-5-methylisoxazole-4-carboxamide (CAS 866150-67-6)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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