2-(chloromethyl)-5-methylpyrazine CAS 81831-68-7
| CAS No. | 81831-68-7 |
| Molecular Formula | C6H13ClN2 |
| Molecular Weight | 148.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(chloromethyl)-5-methylpyrazine is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(chloromethyl)-5-methylpyrazine (CAS 81831-68-7) is a high-purity analytical reference standard with the molecular formula C6H13ClN2 and a molecular weight of 148.63 g/mol.
Owing to chlorine substitution, 2-(chloromethyl)-5-methylpyrazine is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.63 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.
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 manufactures 2-(chloromethyl)-5-methylpyrazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H13ClN2 |
| Molecular Weight | 148.63 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloromethyl Standards
- 4-(chloromethyl)-1,3-dimethyl-1H-pyrazole (CAS 1119833-69-0)
- 2-(Chloromethyl)cyclohexanol (CAS 113662-55-8)
- 5-(chloromethyl)-1-ethyl-pyrazole (CAS 1170981-19-7)
- 2-(chloromethyl)-5-methylpyrimidine (CAS 126504-85-6)
- 5-(chloromethyl)-2-methylpyrimidine (CAS 126504-86-7)
- 4-(Chloromethyl)-4-methyltetrahydro-2h-pyran (CAS 1466745-29-8)
- 1-(Chloromethyl)-1-(2-methoxyethyl)cyclopropane (CAS 1495603-52-5)
- 3-(Chloromethyl)-3-ethyltetrahydrofuran (CAS 15945-79-6)
Recommended Standards
- 2-(chloromethyl)-3-methylpyrazine (CAS 81831-67-6)
- 2,3,3-Trimethylbutanoyl chloride (CAS 52912-50-2)
- 2-(3-Chloropropyl)tetrahydrofuran (CAS 767-07-7)
- 2-chloro-3-ethyl-pyrazine (CAS 63450-95-3)
- 2,4-Difluoro-1-iodobenzene (CAS 2265-93-2)
- 6-(3,4-Dichlorophenyl)pyridazine-3(2H)-thione (CAS 650635-00-0)
- 2-(4-Methyl-2,5-dioxo-4-phenethylimidazolidin-1-yl)acetic acid (CAS 956986-31-5)
- (S)-2,2'-Bis(methoxymethoxy)-1,1'-binaphthyl-3,3'-diboronic acid pinacol ester (CAS 260441-99-4)
- (Z)-2-amino-5-(3,4-dimethoxybenzylidene)thiazol-4(5H)-one 1198098-03-1 F1950-0211 (CAS 1198098-03-1)
- Diquafosol Impurity 14 (CAS 1603-79-8)
- Pyrite (CAS 1309-36-0)
- 2-[1-(Tetrahydro-2-furanylmethyl)-3-pyrrolidinyl]-acetic acid (CAS 1220036-12-3)
- 1-Cyclopropanecarbonyl-4-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidine (CAS 1775302-65-2)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com