4-chloro-6-methoxypyrido[3,2-d]pyrimidine CAS 1417555-18-0
| CAS No. | 1417555-18-0 |
| Molecular Formula | C8H16ClN3O |
| Molecular Weight | 205.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-6-methoxypyrido[3,2-d]pyrimidine (CAS 1417555-18-0) is a high-purity analytical reference standard with the molecular formula C8H16ClN3O and a molecular weight of 205.69 g/mol.
Based on its molecular formula C8H16ClN3O, 4-chloro-6-methoxypyrido[3,2-d]pyrimidine contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 205.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H16ClN3O |
| Molecular Weight | 205.69 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- 4-chloro-7-methoxypyrido[3,2-d]pyrimidine (CAS 1256811-43-4)
- 4-chloro-8-methoxy-pyrido[3,4-d]pyrimidine (CAS 1260178-67-3)
- 5-chloro-2-methoxypyrido[3,4-b]pyrazine (CAS 1600511-78-1)
- 4-(6-chloro-pyridazin-3-yl)-morpholine (CAS 17259-32-4)
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Recommended Standards
- 2-Chloro-3,7,8-trimethyl-quinoline 3217AF 919035-63-5 C12H12ClN (CAS 919035-63-5)
- 2-amino-4-chloroquinazolin-7-ol (CAS 198065-60-0)
- tert-butyl 3-(chloromethyl)azetidine-1-carboxylate (CAS 876589-20-7)
- 2-{[1-(5-chlorothiophen-2-yl)ethyl]amino}ethan-1-ol (CAS 1155046-67-5)
- 6,7-Dimethoxy-1-(pyridin-3-yl)-1,2,3,4-tetrahydroisoquinoline oxalate (CAS 1609402-93-8)
- 6-((Cyclobutylmethyl)amino)pyrimidine-4-carboxylic acid (CAS 1439900-18-1)
- 6-Amino-5-(2-chlorophenyl)pyrimidine-2(1H)-thione (CAS 13291-72-0)
- Dihydrocyclosporin C (CAS 63556-15-0)
- 6-Chloro-N-((tetrahydro-2H-pyran-4-yl)methyl)nicotinamide (CAS 676626-73-6)
- (E)-4,4,5,5-Tetramethyl-2-(4-(pentyloxy)styryl)-1,3,2-dioxaborolane (CAS 2715010-27-6)
- 3-(2-Bromophenyl)-1,4-diazaspiro[4.4]nonan-2-one (CAS 1272755-96-0)
- N-allyl-4-chloro-N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N'-methylbenzenesulfonohydrazide (CAS 321433-35-6)
- Aspirin Impurity 17 (CAS 77527-00-5)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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