3-Chloro-N-(5H-chromeno[4,3-d]pyrimidin-2-yl)benzamide CAS 866041-27-2
| CAS No. | 866041-27-2 |
| Molecular Formula | C18H12ClN3O2 |
| Molecular Weight | 337.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Chloro-N-(5H-chromeno[4,3-d]pyrimidin-2-yl)benzamide (CAS 866041-27-2), molecular formula C18H12ClN3O2 and molecular weight 337.76 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H12ClN3O2, 3-Chloro-N-(5H-chromeno[4,3-d]pyrimidin-2-yl)benzamide contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 337.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C18H12ClN3O2 |
| Molecular Weight | 337.76 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 2-(2-Chloro-4-nitrophenoxy)-N-(1-cyanocyclohexyl)acetamide (CAS 852226-84-7)
- 2-Chloro-N-{5H-chromeno[4,3-d]pyrimidin-2-yl}benzamide (CAS 866041-25-0)
- 4-(4-Chloro-phenyl)-2-oxo-3-quinolin-2-yl-but-3-enoic acid (CAS 473396-84-8)
- 4-Chloro-N-{5H-chromeno[4,3-d]pyrimidin-2-yl}benzamide (CAS 866041-28-3)
- 5-[(E)-2-[(5-Chloro-2-hydroxyphenyl)amino]ethenyl]-3-phenyl-1,2-oxazole-4-carbonitrile (CAS 303995-82-6)
- 5-Acetyl-7-chloro-4-phenylpyrano[3,2-b]indol-2(5H)-one (CAS 2347639-57-8)
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Recommended Standards
- 3-(2-Chlorophenyl)-N-(4-cyanophenyl)-5-methyl-1,2-oxazole-4-carboxamide (CAS 519017-76-6)
- 3-(2-Chlorophenyl)-N-(3-cyanophenyl)-5-methylisoxazole-4-carboxamide (CAS 519050-46-5)
- 3-(2-Chlorophenyl)-N-(2-cyanophenyl)-5-methylisoxazole-4-carboxamide (CAS 885660-30-0)
- 2-(4-Chlorophenyl)-3-(3-methylisoxazol-5-yl)quinazolin-4(3H)-one (CAS 90059-40-8)
- 1-Butyl-3-methylimidazolium methanesulfonate (CAS 342789-81-5)
- 1-Hydroxy-3-oxo-1,3-dihydroisobenzofuran-4-carboxylic acid (CAS 14671-41-1)
- tert-Butyl (5-chloro-1,3,4-thiadiazol-2-yl)carbamate (CAS 1935229-74-5)
- Ethyl 4-(2-((2,5-difluorophenyl)sulfonyl)acetamido)benzoate (CAS 1325303-74-9)
- 2-((4-Chlorobenzylidene)amino)-4-phenyl-1H-pyrrole-3-carbonitrile (CAS 303149-96-4)
- 8-Chloro-3-methoxyquinoxaline-6-carbaldehyde (CAS 2173069-38-8)
- 5-Bromo-2,3-dihydro-1H-inden-2-ol (CAS 862135-61-3)
- 2-Fluoro-6-(methylamino)phenol (CAS 1243287-39-9)
- Erlotinib Impurity 67 (CAS CATO-C4X-106967)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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