3-ethyl-3H,4H,5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-4-one dihydrochloride CAS 1788632-16-5
| CAS No. | 1788632-16-5 |
| Molecular Formula | C9H13N3O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H13N3OHCl, 3-ethyl-3H,4H,5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-4-one dihydrochloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 215.68 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).
3-ethyl-3H,4H,5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-4-one dihydrochloride (CAS 1788632-16-5), molecular formula C9H13N3OHCl and molecular weight 215.68 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.
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 | C9H13N3O 2*HCl |
| Molecular Weight | 215.68 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-(6-Chloro-4-(difluoromethyl)-5-methoxypyridin-2-yl)acetic acid (CAS 1806867-74-2)
- Triethyl 1-oxopropane-1,2,3-tricarboxylate (CAS 42126-21-6)
- 2-Ethoxy-4-formylphenyl isobutyrate (CAS 188417-26-7)
- 2-(4-Ethylpiperazin-1-yl)-2-methylpropan-1-amine (CAS 891643-94-0)
- N-(2-(4-Oxothieno[3,2-d]pyrimidin-3(4H)-yl)ethyl)-3-(thiophen-2-yl)acrylamide (CAS 2034996-85-3)
- isopropyl 4-[(chloroacetyl)amino]benzoate (CAS 38064-88-9)
- (2-Bromo-6-methylpyridin-4-yl)methanol (CAS 1220123-59-0)
- 2-Bromo-5-ethoxybenzaldehyde (CAS 43192-32-1)
- 5,6-Dibromopicolinaldehyde (CAS 1227583-66-5)
- FLAG Epitope Peptide (CAS 98849-88-8)
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