2,6-Diiodopyrazine CAS 58138-79-7
| CAS No. | 58138-79-7 |
| Molecular Formula | C4H2I2N2 |
| Molecular Weight | 331.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,6-Diiodopyrazine is closely related to a nitrile group, iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,6-Diiodopyrazine (CAS 58138-79-7) is a high-purity analytical reference standard with the molecular formula C4H2I2N2 and a molecular weight of 331.88 g/mol.
The molecular framework of 2,6-Diiodopyrazine (C4H2I2N2) is characterized by a nitrile group, iodine 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. 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 2,6-Diiodopyrazine 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 | C4H2I2N2 |
| Molecular Weight | 331.88 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 |
| 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.) | 1973 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Diiodopyrazine Standards
Recommended Standards
- 2,4-Diiodopyrimidine (CAS 262353-34-4)
- 3,5-Diiodopyridazine (CAS 950890-12-7)
- 3,6-Diiodopyridazine (CAS 20698-04-8)
- 4,6-Diiodopyrimidine (CAS 19646-06-1)
- 2-(2-Bromo-6-(chloromethyl)-4-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1804669-39-3)
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- 4,4-Difluoro-3-methylpiperidine (CAS 1434248-01-7)
- (9H-Fluoren-9-yl)methyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate (CAS 845866-60-6)
- (1-(3,5-Difluorophenyl)-3-isopropyl-1h-indol-2-yl)methanol (CAS 886362-94-3)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com