7-Methylpyrido[2,3-b]pyrazine CAS 397325-35-8
| CAS No. | 397325-35-8 |
| Molecular Formula | C8H7N3 |
| Molecular Weight | 145.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Methylpyrido[2,3-b]pyrazine (CAS 397325-35-8) is a high-purity analytical reference standard with the molecular formula C8H7N3 and a molecular weight of 145.16 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 7-Methylpyrido[2,3-b]pyrazine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 145.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 7-Methylpyrido[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 | C8H7N3 |
| Molecular Weight | 145.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 2025 |
| Nitrogen Atoms | 3 |
Related Methylpyrido Standards
- 8-Methylpyrido[2,3-b]pyrazine (CAS 1023817-02-8)
- 6-Methylpyrido[2,3-b]pyrazine (CAS 155629-96-2)
- 2-Methylpyrido[2,3-b]pyrazine (CAS 155629-97-3)
- 2-Methylpyrido[3,4-b]pyrazine (CAS 51208-84-5)
- 3-Methylpyrido[3,4-b]pyrazine (CAS 700-80-1)
- 4-Methylpyrido[2,3-d]pyrimidine (CAS 28732-71-0)
- 4-Methylpyrido[3,2-d]pyrimidine (CAS 51674-88-5)
- 4-Methylpyrido[3,4-d]pyrimidine (CAS 51752-73-9)
Recommended Standards
- 7-Hydroxyisoquinoline (CAS 7651-83-4)
- 8-Hydroxyisoquinoline (CAS 3482-14-2)
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- Benzyl(methoxy)dimethylsilane (CAS 36094-19-6)
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- tert-Butyldimethylsilylcyanide (CAS 56522-24-8)
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- 1-(2-Methoxy-5-methylphenyl)cyclopropane-1-carboxylic acid (CAS 1038719-04-8)
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- 4-(4-Chlorobenzyl)benzene-1,3-diol (CAS 6280-43-9)
- 1142215-80-2 9470AC C20H24N2O6 [{2-[(3,4-Dimethoxybenzyl)amino]-2-oxoethyl}-(4-methoxyphenyl)amino]acetic acid (CAS 1142215-80-2)
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