Pyrazine-2-carboximidamide hydrochloride CAS 138588-41-7
| CAS No. | 138588-41-7 |
| Molecular Formula | C5H6N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrazine-2-carboximidamide hydrochloride (CAS 138588-41-7), molecular formula C5H6N4HCl and molecular weight 158.59 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Pyrazine-2-carboximidamide hydrochloride (C5H6N4HCl) contains a nitrile group, chlorine 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 158.59 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C5H6N4 HCl |
| Molecular Weight | 158.59 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pyrazine Standards
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- 1-(Pyrazine-2-carbonyl)piperidin-4-one (CAS 1060817-24-4)
- Pyrazine-2-boronic acid pinacol ester, 97% (CAS 1083179-99-0)
- Pyrazine-2,3-diyldimethanol (CAS 1092286-62-8)
- 2-(Pyrazine-2-carboxamido)thiazole-4-carboxylic acid (CAS 1105192-33-3)
- Pyrazine-2-sulfonamide (CAS 1195533-51-7)
- Pyrazine-2-carbothioic acid,S-phenyl ester (CAS 121761-15-7)
- Methyl 3-(pyrazine-2-carboxamido)propanoate (CAS 1223010-41-0)
Recommended Standards
- Propargyl-PEG4-Br (CAS 1308299-09-3)
- Diethyl (3-hydroxy-4-methylpent-1-en-3-yl)phosphonate (CAS 2052-57-5)
- Imidazo[2,1-b][1,3,4]thiadiazol-6-ylmethanamine (CAS 933698-31-8)
- Apalutamide Impurity 37 (CAS CATO-C4X-274937)
- 18:1 LysylPG (CAS 1246303-07-0)
- Sitagliptin Impurity 14 (CAS 1151240-91-3)
- Methyl 2-(trifluoromethyl)-2,3,4,7-tetrahydro-1H-azepine-2-carboxylate (CAS 1274891-97-2)
- 2-Chloro-N-(5-ethoxy-2-methyl-2,3-dihydrobenzofuran-6-yl)acetamide (CAS 930395-69-0)
- 2-Bromo-N-(4-phenylbutan-2-yl)butanamide (CAS 1119452-41-3)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
Why CATO?
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