2,3-Dichloropyrazine CAS 4858-85-9
| CAS No. | 4858-85-9 |
| Molecular Formula | C4H2Cl2N2 |
| Molecular Weight | 148.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Dichloropyrazine is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,3-Dichloropyrazine (CAS 4858-85-9), molecular formula C4H2Cl2N2 and molecular weight 148.98 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, 2,3-Dichloropyrazine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.98 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.
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 2,3-Dichloropyrazine 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 | C4H2Cl2N2 |
| Molecular Weight | 148.98 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 | 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloropyrazine Standards
- 2,5-Dichloropyrazine (CAS 19745-07-4)
- 4774-14-5 2,6-Dichloropyrazine Pyrazine, 2,6-dichloro- AI3-61780 EINECS 225-316-8 (CAS 4774-14-5)
- 2,6-Dichloropyrazine 1-oxide (CAS 61655-70-7)
- 3,5-Dichloropyrazine-2-carbonitrile (CAS 313339-92-3)
- 3,6-Dichloropyrazine-2-carbaldehyde (CAS 1357172-39-4)
- 3,5-Dichloropyrazine-2-carbaldehyde (CAS 136866-27-8)
- 3,5-Dichloropyrazine-2-methanol (CAS 313339-89-8)
- 3,5-Dichloropyrazine-2-carboxamide (CAS 312736-50-8)
Recommended Standards
- 4,5-Dichloropyridazine (CAS 55271-49-3)
- 3,5-Dichloropyridazine (CAS 1837-55-4)
- 2,5-Dichloropyrimidine (CAS 22536-67-0)
- 2,3-Dichloropyridine-2-13C (CAS 1644451-39-7)
- 1-(3-Methoxyphenyl)propan-1-amine (CAS 473732-60-4)
- Hexa-1,4-diyn-3-ol (CAS 62679-53-2)
- Fmoc-(S)-2-amino-4-cyclopentylbutanoic acid (CAS 2349655-85-0)
- tert-Butyl (4-(3-oxopropyl)phenyl)carbamate (CAS 1413947-90-6)
- (Z)-5-Amino-3-oxo-7-(thiophen-2-yl)-2-(thiophen-2-ylmethylene)-2,3-dihydro-7H-thiazolo[3,2-a]pyridine-6,8-dicarbonitrile (CAS 106642-94-8)
- 1-(3-Aminopiperidin-1-yl)-2-ethoxyethan-1-one (CAS 1250923-97-7)
- Glycine, ammonium salt (CAS 29728-27-6)
- Ethyl 2-(chroman-4-yl)acetate (CAS 119304-96-0)
- 1-methoxy-4,4-dimethylpentan-3-one (CAS 1249862-83-6)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
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