7-Ethyl-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid CAS 937691-08-2
| CAS No. | 937691-08-2 |
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Ethyl-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid 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.
7-Ethyl-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 937691-08-2), molecular formula C11H11N3O4 and molecular weight 249.22 g/mol, is a CATO reference standard with documented purity and traceability.
7-Ethyl-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid (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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 7-Ethyl-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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.) | 1987 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 7-amino-4,4-dimethyl-8-nitroisoquinoline-1,3(2H,4H)-dione (CAS 99911-28-1)
- Benidipine Impurity 11 (CAS 52604-00-9)
- 7,8-Dimethoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 800412-45-7)
- Benzyl (2,5-dioxotetrahydrofuran-3-yl)carbamate (CAS 35739-00-5)
- N-Ethyl-2,6-difluoro-N-phenylbenzamide (CAS 1448169-69-4)
- 3-(((2,3-Dihydro-1H-inden-5-yl)oxy)methyl)piperidine (CAS 883522-30-3)
- 3-(Cyclopropylamino)-1λ6-thiolane-1,1-dione hydrochloride (CAS 915402-17-4)
- 3-Bromo-2-((tetrahydrofuran-2-yl)methoxy)pyridine (CAS 1248638-70-1)
- 2-(2-Ethyl-1H-pyrrol-1-yl)acetic acid (CAS 153396-82-8)
- 2-amino-6-methyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 1250433-17-0)
- Borneol (CAS 507-70-0)
- 4-(2H-Benzo[d][1,2,3]triazol-2-yl)butanoic acid (CAS 4144-70-1)
- 6'-Chloro-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-quinoline] (CAS 1781211-41-3)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788692)
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