tert-Butyl 4-chloro-2-(pyridin-4-yl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate CAS 1266619-75-3
| CAS No. | 1266619-75-3 |
| Molecular Formula | C17H19ClN4O2 |
| Molecular Weight | 346.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including tert-Butyl 4-chloro-2-(pyridin-4-yl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate.
CATO supplies tert-Butyl 4-chloro-2-(pyridin-4-yl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (CAS 1266619-75-3), a certified reference material (molecular formula C17H19ClN4O2, MW 346.81 g/mol) for analytical method development and quality control.
tert-Butyl 4-chloro-2-(pyridin-4-yl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (C17H19ClN4O2) contains a steroid 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H19ClN4O2 |
| Molecular Weight | 346.81 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
- 4-(chlorosulfonyl)phenyl 4-methylbenzenesulfonate (CAS 121347-21-5)
- 3-Amino-4-(3-chlorophenyl)-1-(3,4-dimethoxybenzyl)azetidin-2-one (CAS 1291488-90-8)
- 2-(2-Chloroacetamido)-N-[2-(4-methoxyphenyl)ethyl]benzamide (CAS 117507-51-4)
- 3-Amino-4-(4-chlorophenyl)-1-(3,4-dimethoxybenzyl)azetidin-2-one (CAS 1291490-39-5)
- 3,5,7-Trimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 16692-52-7)
- Tert-butyl 2-(((tert-butyldimethylsilyl)oxy)methyl)-3-oxopiperidine-1-carboxylate (CAS 2095241-21-5)
- 5-(2-Methoxyethyl)-2-(methylamino)pyrimidin-4-ol (CAS 1403564-57-7)
- dimethyl-1H-1,2,3-triazole-4-carbohydrazide (CAS 1862908-11-9)
- (3-(tert-butyl)-5-(methoxycarbonyl)phenyl)boronic acid (CAS 193905-91-8)
- 4-((5-(Naphthalen-1-yl)-1,3,4-oxadiazol-2-yl)thio)but-2-yn-1-yl benzoate (CAS 844456-97-9)
- 5-Cyclopropyl-2,3-dihydro-1H-pyrrolizine-7-carboxylic acid (CAS 1823442-22-3)
- 2,6-Dichloro-N1-(2-(dimethylamino)ethyl)benzene-1,4-diamine (CAS 1695170-50-3)
- 2-(4-Hydroxycyclohexyl)acetic acid (CAS 99799-09-4)
- Des-Asp15-Tirzepatide (CAS CATO-CPTD788958)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com