2,4-Dichloro-5-ethyl-6-methylpyrimidine CAS 861033-35-4
| CAS No. | 861033-35-4 |
| Molecular Formula | C7H8Cl2N2 |
| Molecular Weight | 191.06 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.
CATO supplies 2,4-Dichloro-5-ethyl-6-methylpyrimidine (CAS 861033-35-4), a certified reference material (molecular formula C7H8Cl2N2, MW 191.06 g/mol) for analytical method development and quality control.
Structurally, 2,4-Dichloro-5-ethyl-6-methylpyrimidine (C7H8Cl2N2) contains a nitrile group, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 191.06 g/mol, it falls into the medium-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), 2,4-Dichloro-5-ethyl-6-methylpyrimidine 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 | C7H8Cl2N2 |
| Molecular Weight | 191.06 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- (2,6-Dichloro-3-methylphenyl)hydrazine (CAS 1099660-40-8)
- 4,6-Dichloro-2-propylpyrimidine (CAS 1197-28-0)
- 2,6-Dichloro-N-ethylpyridin-4-amine (CAS 1314966-82-9)
- 4,5-Dichloro-2-methylbenzene-1,3-diamine (CAS 1375068-66-8)
- 4,5-Dichloro-6-ethyl-2-methylpyrimidine (CAS 141602-39-3)
- 2,3-Dichloro-5-ethyl-6-methylpyrazine (CAS 1461704-76-6)
- 3,5-Dichloro-2-methylbenzene-1,4-diamine (CAS 1513522-62-7)
- 4,6-Dichloro-5-ethyl-2-methylpyrimidine (CAS 175139-08-9)
Recommended Standards
- 2,4-Dichloro-5-(propan-2-yl)pyrimidine (CAS 514843-12-0)
- 2,4-Dichloro-6-(propan-2-yl)pyrimidine (CAS 89938-05-6)
- 2-(Aminomethyl)-4,6-dichloroaniline (CAS 771580-69-9)
- 2,4-Dichloro-6-propylpyrimidine (CAS 89938-07-8)
- 1-((2-Fluorophenyl)thio)pentan-2-one (CAS 1247627-80-0)
- Ethyl 5-cyano-6-[(2,4-dichlorophenyl)sulfanyl]-2-phenylpyridine-3-carboxylate (CAS 860784-73-2)
- 1-(2-(2-Hydroxyethyl)-1,2,3,4-tetrahydroisoquinolin-5-yl)-5-methyl-1h-1,2,3-triazole-4-carboxylic acid hydrochloride (CAS 1311318-35-0)
- 3-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(3-methoxypropyl)propanamide (CAS 339099-94-4)
- ((R)-((S)-4,4-Dimethyl-1,3-dioxolan-2-yl)((trimethylsilyl)oxy)methyl)((R)-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)((trimethylsilyl)oxy)methyl)(phenyl)phosphine oxide (CAS 1955485-42-3)
- (1-Ethyl-3-methyl-1H-pyrazol-5-yl)boronic acid (CAS 2259724-28-0)
- Methyl 4-bromo-5-chloro-3-formyl-1H-indole-2-carboxylate (CAS 2450997-56-3)
- 2,2-Dimethyl-1a,7b-dihydro-2H-oxireno[2,3-c]chromene-6-carbonitrile (CAS 65018-90-8)
- 1-(2,5-Dimethoxyphenyl)cyclopentan-1-amine (CAS 1344266-31-4)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
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