2-chloro-5-fluoro-pyrazine CAS 959019-05-7
| CAS No. | 959019-05-7 |
| Molecular Formula | C4H8ClFN2 |
| Molecular Weight | 138.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-chloro-5-fluoro-pyrazine (C4H8ClFN2) is characterized by fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-chloro-5-fluoro-pyrazine (CAS 959019-05-7) is a high-purity analytical reference standard with the molecular formula C4H8ClFN2 and a molecular weight of 138.57 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-chloro-5-fluoro-pyrazine 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 | C4H8ClFN2 |
| Molecular Weight | 138.57 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.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- (2-chloro-2-fluoro-1-methylcyclopropyl)methanol (CAS 1823356-09-7)
- 1-Chloro-3-fluoro-3-methylbutan-2-one (CAS 80212-78-8)
- 2-chloro-6-fluoro-pyrazine (CAS 33873-10-8)
- 3-chloro-6-fluoropyridazine (CAS 33097-38-0)
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- Mirtazapine Impurity 17 (CAS 6602-54-6)
- Ethyl 5-(((4-(trifluoromethyl)phenyl)amino)methyl)furan-2-carboxylate (CAS 1216788-96-3)
- 7-Chloro-4-nitrobenzofuran (CAS 115491-60-6)
- 1-Benzyl-3-hydrazono-1,3-dihydro-indol-2-one (CAS 95060-80-3)
- 2-Bromo-1-(4-(furan-2-yl)phenyl)ethan-1-one (CAS 868755-47-9)
- (S)-(7-Cyano-1,2,3,4-tetrahydrocyclopenta[b]indol-2-yl)carbamic Acid Isopropyl Ester (CAS 1029691-23-3)
- 1-Amino-5-chloro-4-hydroxyanthracene-9,10-dione (CAS 116-84-7)
- 4-(3-Chlorophenyl)-5-[3-(morpholine-4-sulfonyl)phenyl]-4H-1,2,4-triazole-3-thiol (CAS 721418-75-3)
- 2-Chloro-7-fluoro-6-methoxyquinoline-3-carbaldehyde (CAS 251902-52-0)
- (4-(Chloromethyl)-3-(difluoromethyl)-6-fluoropyridin-2-yl)methanol (CAS 1807067-25-9)
- [a-Glu](Side chain transposition)- Semaglutide (CAS CATO-C4X-2226111)
Why CATO?
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