2-[1-Cyano-2-(2,4-dichlorophenyl)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile CAS 338977-22-3
| CAS No. | 338977-22-3 |
| Molecular Formula | C18H11Cl2N5 |
| Molecular Weight | 368.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-[1-Cyano-2-(2,4-dichlorophenyl)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 338977-22-3), a certified reference material (molecular formula C18H11Cl2N5, MW 368.22 g/mol) for analytical method development and quality control.
Structurally, 2-[1-Cyano-2-(2,4-dichlorophenyl)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (C18H11Cl2N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 368.22 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2-[1-Cyano-2-(2,4-dichlorophenyl)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile 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 | C18H11Cl2N5 |
| Molecular Weight | 368.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Cyano Standards
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Recommended Standards
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- 3-Bromo-6-fluoro-1-tosyl-1H-indole (CAS 887338-51-4)
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- Ethyl 2-amino-4-chloro-3-fluorobenzoate (CAS 1108668-28-5)
- n-(2-(Benzo[d]thiazol-2-ylamino)ethyl)methanesulfonamide (CAS 1111514-93-2)
- 2-((Tert-butylamino)methyl)-6-methoxyphenol (CAS 73822-25-0)
- 3-[(4-Benzylphenoxy)methyl]pyrrolidinehydrochloride (CAS 1220016-68-1)
- Ethyl 2-(3-isopropylphenyl)-2-oxoacetate (CAS 1256481-01-2)
- 2-(4-Nitro-1h-pyrazol-1-yl)aniline (CAS 62537-74-0)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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