2,5-Diiodopyrazine CAS 1093418-77-9
| CAS No. | 1093418-77-9 |
| Molecular Formula | C4H2I2N2 |
| Molecular Weight | 331.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C4H2I2N2, 2,5-Diiodopyrazine contains a nitrile group, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2,5-Diiodopyrazine (CAS 1093418-77-9), molecular formula C4H2I2N2 and molecular weight 331.88 g/mol, is a CATO reference standard with documented purity and traceability.
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 2,5-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.) | 1989 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Diiodopyrazine Standards
Recommended Standards
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- (2-Chlorophenyl)-N-[4-(hexyloxy)benzyl]methanamine (CAS 1040684-62-5)
- 4,6-Diiodopyrimidine (CAS 19646-06-1)
- 1-(1-(3-Bromophenyl)-1h-1,2,3-triazol-4-yl)-N-methylmethanamine (CAS 1486220-45-4)
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- 2,5-Dimethyl-4-thiocyanatophenol (CAS 6186-85-2)
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- (2R,5S)-2-(tert-Butyl)-3-methyl-5-(phenylmethyl)-4-imidazolidinone (CAS 691847-46-8)
- (S)-4-(Trifluoromethyl)-2,3-dihydro-1H-inden-1-ol (CAS 1202577-82-9)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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