methyl 1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate CAS 120788-68-3
| CAS No. | 120788-68-3 |
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of methyl 1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies methyl 1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate (CAS 120788-68-3), a certified reference material (molecular formula C11H11N3O4, MW 249.22 g/mol) for analytical method development and quality control.
methyl 1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate (C11H11N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), methyl 1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate 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 | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related methyl Standards
- 4-(2,4-Dimethyl-3,5-dioxo-1,2,4-triazolidin-1-yl)benzoic acid (CAS 1181458-92-3)
- 5,5-dimethyl-3-(3-nitrophenyl)imidazolidine-2,4-dione (CAS 1307459-55-7)
- 5-[(3,5-dimethyl-4-nitro-1h-pyrazol-1-yl)methyl]furan-2-carbaldehyde (CAS 512809-77-7)
- 4,6-Dimethyl-2-(2,2,2-trifluoroethoxy)nicotinic acid (CAS 1178053-44-5)
- Methyl 2-(2,2-dimethyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl)acetate (CAS 1889863-24-4)
- (4,4-Dimethyl-3-oxocyclohexa-1,5-dien-1-yl)methyl oxazolidine-3-carboxylate (CAS 649766-82-5)
- 3-(2,6-Dimethyl-3-oxo-2,3-dihydro-benzo[1,4]-oxazin-4-yl)-propionic acid (CAS 352666-90-1)
- Methyl 7,7-dimethyl-2,5-dioxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 650597-76-5)
Recommended Standards
- 1-Bromo-3,5-Dimethyladamantane D6 (CAS 1189429-92-2)
- 6,7-Dimethoxy-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 122234-41-7)
- Benidipine Impurity N1 (CAS 118431-03-1)
- 3-Cyano-4-(2-ethoxy-2-oxoethoxy)benzoic acid (CAS 1228184-39-7)
- 1-(2-Methoxy-ethyl)-[1,4]diazepane (CAS 59039-67-7)
- 1-(4-Bromobenzene)sulfonylpyrazole (CAS 560105-21-7)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-cyclobutylpropanoic acid (CAS 478183-62-9)
- tert-Butyl (3-iodo-4-(methylthio)pyridin-2-yl)carbamate (CAS 1211504-19-6)
- Azido-PEG1-azide (CAS 24345-74-2)
- Mirabegron Impurity 54 (CAS 2384612-86-4)
- Tert-butyl 2-(pyridin-4-yl)acetate (CAS 79757-20-3)
- Nafamostat Impurity 20 (CAS CATO-C4X-133220)
- 5-Fluoro-2,4-dimethyl-1H-indole (CAS 628736-92-5)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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