2,6-Dichloro-5-ethyl-4-methylnicotinonitrile CAS 39620-99-0
| CAS No. | 39620-99-0 |
| Molecular Formula | C9H8Cl2N2 |
| Molecular Weight | 215.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 215.08 g/mol gives 2,6-Dichloro-5-ethyl-4-methylnicotinonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,6-Dichloro-5-ethyl-4-methylnicotinonitrile (CAS 39620-99-0), molecular formula C9H8Cl2N2 and molecular weight 215.08 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,6-Dichloro-5-ethyl-4-methylnicotinonitrile (C9H8Cl2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 215.08 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H8Cl2N2 |
| Molecular Weight | 215.08 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2,6-Dichloro-4-propylnicotinonitrile (CAS 52338-17-7)
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- 2,6-Dichloro-4-isopropylnicotinonitrile (CAS 503843-54-7)
- 4-(2,6-Dichlorophenyl)but-3-en-2-one (CAS 41420-69-3)
- Ethyl 2,6-bis(trifluoromethyl)quinoline-4-carboxylate (CAS 1185292-62-9)
- 2,2-Bis(acetoxymethyl)propane-1,3-diyl diacetate (CAS 597-71-7)
- 2-Hydroxy-5-sulfonicotinic Acid (CAS 334708-05-3)
- 7,10-Dioxadispiro[3.1.4.1]undecan-2-one (CAS 2749864-49-9)
- 1,4-Dibromo-2-fluoro-3-iodobenzene (CAS 1804417-99-9)
- 3-Amino-5-bromo-4-hydroxybenzoic acid (CAS 860182-21-4)
- (3-(4-Chlorophenyl)-9-methyl-5-phenyl-7H-furo[3,2-g]chromen-7-ylidene)hydrazine (CAS 1092333-66-8)
- 3-Methylpiperidine (CAS 626-56-2)
- 2-(Hydroxymethyl)acrylonitrile (CAS 23873-54-3)
- D-[γ-Glu](Side Chain)-Semaglutide (CAS CATO-C4X-2226254)
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