2-Chloro-3-(trifluoromethyl)pyrazine CAS 191340-90-6
| CAS No. | 191340-90-6 |
| Molecular Formula | C5H2ClF3N2 |
| Molecular Weight | 182.53 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-Chloro-3-(trifluoromethyl)pyrazine (CAS 191340-90-6), a certified reference material (molecular formula C5H2ClF3N2, MW 182.53 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H2ClF3N2, 2-Chloro-3-(trifluoromethyl)pyrazine contains a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-Chloro-3-(trifluoromethyl)pyrazine 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 | C5H2ClF3N2 |
| Molecular Weight | 182.53 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 |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-3,5,6-trifluorophenol (CAS 121555-66-6)
- 5-Chloro-4-(trifluoromethyl)pyrimidine (CAS 1260773-71-4)
- 4-Chloro-2-(trifluoromethyl)pyrimidine (CAS 1514-96-1)
- 2-Chloro-4-(difluoromethyl)-5-fluoropyrimidine (CAS 1522239-96-8)
- 5-Chloro-3-(trifluoromethyl)pyridazine (CAS 1616070-39-3)
- 3-Chloro-2,5,6-trifluoropyridin-4-amine (CAS 2693-57-4)
- 3-Chloro-4-(trifluoromethyl)pyridazine (CAS 749258-96-6)
- 3-Chloro-5-(trifluoromethyl)pyridazine (CAS 845617-99-4)
Recommended Standards
- 3-Chloro-6-(trifluoromethyl)pyridazine (CAS 258506-68-2)
- 4-Chloro-3,5,6-trifluoropyridin-2-amine (CAS 63489-56-5)
- 4-CHloro-1,1,3,3,3-pentafluorobutane (CAS 70566-48-2)
- 4-Chloro-5-(trifluoromethyl)pyrimidine (CAS 958452-21-6)
- N-(5-Amino-2-methylphenyl)-2-(2-methylphenoxy)-propanamide (CAS 954264-47-2)
- 1-(4-tert-Butylphenyl)-3-(2-chlorophenyl)-1-[(2,4-dimethoxyphenyl)methyl]thiourea (CAS 306730-48-3)
- 2-Chloro-9-isopropyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-9H-purin-6-amine (CAS 1056016-74-0)
- 3-(3-Methylisoxazol-5-yl)acrylamide (CAS 71865-09-3)
- 1,1-Difluoro-5,7-dimethyl-6-azaspiro[2.5]Octane (CAS 2306264-43-5)
- 2-(3-Oxo-3-(piperazin-1-yl)propyl)isoindoline-1,3-dione (CAS 1018568-22-3)
- 6-(3,4-Dimethylphenyl)-3-ethyl-4-phenylisoxazolo[5,4-b]pyridine (CAS 89572-59-8)
- (2-(Methylthio)pyrimidin-5-yl)methanamine hydrochloride (CAS 182287-52-1)
- 1-(2-Fluorophenyl)-3-methyl-1h-pyrazole-5-carboxylic acid (CAS 948293-26-3)
- Biotinyl-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 213779-13-6)
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