6-Benzyl 4-ethyl 2-chloro-7,8-dihydropyrido[4,3-d]pyrimidine-4,6(5H)-dicarboxylate CAS 1350300-89-8
| CAS No. | 1350300-89-8 |
| Molecular Formula | C18H18ClN3O4 |
| Molecular Weight | 375.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Benzyl 4-ethyl 2-chloro-7,8-dihydropyrido[4,3-d]pyrimidine-4,6(5H)-dicarboxylate (C18H18ClN3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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).
CATO supplies 6-Benzyl 4-ethyl 2-chloro-7,8-dihydropyrido[4,3-d]pyrimidine-4,6(5H)-dicarboxylate (CAS 1350300-89-8), a certified reference material (molecular formula C18H18ClN3O4, MW 375.81 g/mol) for analytical method development and quality control.
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 | C18H18ClN3O4 |
| Molecular Weight | 375.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- Etravirine Impurity N2 (CAS 1070377-34-2)
- 2-[4-(4-Chlorophenyl)-2-methyl-3-oxo-1,2,4-oxadiazolidin-5-yl]-N-(4-methoxyphenyl)acetamide (CAS 477888-23-6)
- Baclofen Impurity 85 (CAS CATO-C4X-101285)
- 3-((6-Chloro-4-phenylquinazolin-2-yl)amino)benzoic acid (CAS 330950-71-5)
- 3-Cyano-D-phenylalanine (CAS 263396-43-6)
- Fmoc-L-Hgn(Trt)-OH (CAS 1263046-43-0)
- 5-methyl-1-phenyl-1H-pyrazol-3-amine (CAS 85485-59-2)
- 2-((2S,6R)-2,6-dimethylpiperidin-1-yl)ethan-1-amine (CAS 1788-35-8)
- 2-Methoxycyclopropane-1-carboxylic acid (CAS 53381-04-7)
- tert-Butyl cyclohex-2-en-1-ylcarbamate (CAS 91230-16-9)
- 5,6-Dichloropyrazine-2,3-dicarboxamide (CAS 1936113-32-4)
- (±)-Ibuprofen-d3, Sodium Salt (α-methyl-d3) (CAS 1219805-09-0)
- 3-Fluoro-N-hydroxypicolinimidamide (CAS 327056-66-6)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com