7-Bromopyrido[2,3-b]pyrazine CAS 52333-42-3
| CAS No. | 52333-42-3 |
| Molecular Formula | C7H4BrN3 |
| Molecular Weight | 210.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4BrN3, 7-Bromopyrido[2,3-b]pyrazine contains a nitrile group, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
7-Bromopyrido[2,3-b]pyrazine (CAS 52333-42-3), molecular formula C7H4BrN3 and molecular weight 210.03 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Bromopyrido[2,3-b]pyrazine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H4BrN3 |
| Molecular Weight | 210.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromopyrido Standards
- 5-Bromopyrido[3,4-b]pyrazine (CAS 1159829-75-0)
- 6-Bromopyrido[2,3-b]pyrazine (CAS 1204298-53-2)
- 6-Bromopyrido[3,4-d]pyrimidine (CAS 2383600-87-9)
- 7-Bromopyrido[3,2-d]pyrimidine (CAS 2089301-15-3)
- 8-Bromopyrido[3,4-d]pyridazine (CAS 40511-78-2)
- 8-bromopyrido[3,4-b]pyrazine (CAS 929074-45-3)
- 6-Bromopyrido[2,3-d]pyrimidin-4-amine (CAS 1121633-45-1)
- 7-Bromopyrido[3,2-d]pyrimidin-4-amine (CAS 1299607-72-9)
Recommended Standards
- 5-Cyano-2-bromobenzaldehyde (CAS 89003-95-2)
- 5-bromo-1-methyl-4-nitro-1H-pyrazole (CAS 89607-13-6)
- Ethyl 3-bromo-2-(hydroxyimino)propanoate (CAS 73472-94-3)
- 4-Isopropoxy-3-methoxyphenylboronic acid (CAS 875654-33-4)
- 5-Amino-1-(1-phenylpiperidin-4-yl)-1H-pyrazol-3-ol (CAS 955962-96-6)
- 1-Methyl-1H-indazol-5-ol (CAS 756839-14-2)
- Fmoc-Lys(Ac)-OH (CAS 159766-56-0)
- 2,6-Dimethyl-4-(naphthalen-1-yl)pyridine-3,5-dicarboxylic acid (CAS 94301-28-7)
- tert-butyl N-[(2S,3S)-2-methylazetidin-3-yl]carbamate (CAS 2068137-90-4)
- Fmoc-Glu(OtBu)-H (CAS 206759-97-9)
- 3-Methylfuran-2-carbonyl chloride (CAS 22601-06-5)
- 2-(3,5-Dimethyl-1-(pyridin-2-yl)-1H-pyrazol-4-yl)acetic acid (CAS 926271-74-1)
- 3-Bromo-N,N-dimethylimidazo[1,2-a]pyrazin-8-amine (CAS 787590-55-0)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
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