2-Bromo-5-(methylthio)pyrazine CAS 1049026-49-4
| CAS No. | 1049026-49-4 |
| Molecular Formula | C5H5BrN2S |
| Molecular Weight | 205.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-(methylthio)pyrazine (C5H5BrN2S) contains a nitrile group, sulfur-containing functionality, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2-Bromo-5-(methylthio)pyrazine (CAS 1049026-49-4) is a high-purity analytical reference standard with the molecular formula C5H5BrN2S and a molecular weight of 205.08 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.
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 | C5H5BrN2S |
| Molecular Weight | 205.08 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.) | 1988 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-4-(methylthio)pyrimidine (CAS 1034619-51-6)
- 3-Bromo-6-(methylthio)pyridazine (CAS 1159977-67-9)
- 4-Bromo-6-(methylthio)pyrimidine (CAS 1209458-45-6)
- 5-Bromo-6-methylpyrimidine-4-thiol (CAS 1209997-06-7)
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Recommended Standards
- 2-(tert-Butyl)-4,6-dichloropyrimidine (CAS 1044771-51-8)
- 3,6-Dichloro-4,5-diethylpyridazine (CAS 107228-53-5)
- 4-(tert-Butyl)-2,6-dichloropyrimidine (CAS 1037535-38-8)
- 4-Bromothiophene-2-carboximidamide (CAS 1094293-83-0)
- 5-Amino-4-chloropicolinic acid (CAS 1060804-26-3)
- 2-(6-Bromo-5-cyano-2-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1805371-63-4)
- 2-Nitro-1-(3-nitrophenoxy)-4-(trifluoromethyl)benzene (CAS 500361-94-4)
- 4-Nitrophenyl 2-fluoropropanoate (CAS 178181-33-4)
- N-(4-Amino-2-chloro-5-methylphenyl)benzamide (CAS 121-22-2)
- 5,6,7,8-tetrahydronaphthalen-1-ylthiourea (CAS 139331-66-1)
- 1-Benzyl-4-hydroxyquinolin-2(1H)-one (CAS 105024-96-2)
- 286367-80-4 Iodo(1-~13~C)acetic acid DTXSID90746142 (CAS 286367-80-4)
- 3-Bromo-N-t-butyl-N-methylbenzenesulfonamide (CAS 1187386-30-6)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
Why CATO?
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