2-Bromo-3-iodopyrazine CAS 860308-71-0
| CAS No. | 860308-71-0 |
| Molecular Formula | C4H2BrIN2 |
| Molecular Weight | 284.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Bromo-3-iodopyrazine (CAS 860308-71-0), a certified reference material (molecular formula C4H2BrIN2, MW 284.88 g/mol) for analytical method development and quality control.
Structurally, 2-Bromo-3-iodopyrazine (C4H2BrIN2) contains a nitrile group, bromine/iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 284.88 g/mol, it falls into the medium-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H2BrIN2 |
| Molecular Weight | 284.88 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, 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.) | 1987 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-Bromo-4-iodopyrimidine (CAS 1034619-55-0)
- 3-Bromo-6-iodopyridazine (CAS 1266675-57-3)
- 2-Bromo-6-iodopyrazine (CAS 1417517-98-6)
- 4-Bromo-6-iodopyrimidine (CAS 1417519-08-4)
- 4-Bromo-5-iodopyrimidine (CAS 1500179-97-4)
- 5-Bromo-2-Iodopyrimidine (CAS 183438-24-6)
- 2-Bromo-5-iodopyrazine (CAS 622392-04-5)
- 2-Bromo-5-iodopyrimidine (CAS 905856-70-4)
Recommended Standards
- 5-Bromo-4-iodopyrimidine (CAS 898559-22-3)
- (3,5-Dibromo-1H-1,2,4-triazol-1-yl)acetic acid (CAS 1148046-92-7)
- 3-(Dibromomethyl)-2-nitrofuran (CAS 122947-92-6)
- 2,3,5,6-Tetrachloro-4-(trifluoromethyl)pyridine (CAS 122599-19-3)
- 2-((5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 332161-90-7)
- 5-Methoxy-2-(trifluoromethyl)benzonitrile (CAS 1214346-63-0)
- Tryptophan Cyclized Impurity (CAS 40856-80-2)
- Vitamin K1 Impurity 62 (CAS CATO-C4X-220762)
- tert-Butyl (4-((6-chloro-2-(methylthio)pyrimidin-4-yl)amino)cyclohexyl)carbamate (CAS 1289384-66-2)
- Methyl 5-(3-fluorophenyl)-5-oxopentanoate (CAS 1443351-25-4)
- Methyl 2-bromo-3-(difluoromethyl)-5-fluoroisonicotinate (CAS 1806905-72-5)
- 3-(3-Methoxypropoxy)pyrrolidine hydrochloride (CAS 1220017-87-7)
- (5-Bromo-2,3-difluoro-4-methylphenyl)methanol (CAS 2484889-29-2)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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