N-(3-Chlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide CAS 1574582-23-2
| CAS No. | 1574582-23-2 |
| Molecular Formula | C20H20ClN3O2 |
| Molecular Weight | 369.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-(3-Chlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies N-(3-Chlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574582-23-2), a certified reference material (molecular formula C20H20ClN3O2, MW 369.84 g/mol) for analytical method development and quality control.
The molecular framework of N-(3-Chlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (C20H20ClN3O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), N-(3-Chlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H20ClN3O2 |
| Molecular Weight | 369.84 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
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- (4Z)-1-(4-Chlorophenyl)-4-{[(3,4-dimethylphenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-05-6)
- 1,1'-(4-(5-(2-Chlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-diyl)diethanone (CAS 303093-79-0)
- 2-(4-(4-Chlorophenyl)piperazin-1-yl)-2-(1H-indol-2-yl)acetic acid (CAS 885277-02-1)
- 3-(5-(3-Chlorophenyl)furan-2-yl)-N-(4-ethoxyphenyl)propanamide (CAS 853312-47-7)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-N-(4-ethoxyphenyl)propanamide (CAS 853311-53-2)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-N-(4-methoxybenzyl)propanamide (CAS 853312-09-1)
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Recommended Standards
- JWH-203 N-pentanoic acid metabolite (CAS 1449675-70-0)
- Amopyroquine N-Oxide (CAS 172476-17-4)
- 2-(Benzyloxy)-3-(2-(benzyloxy)ethoxy)-5-chloropyridine (CAS 1820707-55-8)
- (2S,4S)-1-(tert-butoxycarbonyl)-4-(4-chloro-3,5-dimethylphenoxy)pyrrolidine-2-carboxylic acid (CAS 1354486-78-4)
- 2-Bromo-N-(3-chlorophenyl)propanamide (CAS 77112-27-7)
- 2,3-Dichloro-5-(trifluoromethyl)isonicotinonitrile (CAS 1198475-29-4)
- 5'-(1H-tetrazol-5-yl)-[1,1':3',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 2249811-47-8)
- 1-Benzyl-4-(carboxymethyl)piperidine-4-carboxylic acid (CAS 40117-92-8)
- 2'-(Benzyloxy)[1,1'-biphenyl]-4-carbaldehyde (CAS 893736-09-9)
- butyl 2-(2,2,2-trifluoroethoxy)nicotinate (CAS 680213-93-8)
- 1-((4-Ethylbenzyl)amino)-2-methylpropan-2-ol (CAS 1482341-94-5)
- 3-[5-(Piperidin-4-yl)-[1,2,4]-oxadiazol-3-yl]-pyridine (CAS 849925-01-5)
- 2-(2-Methoxynaphthalen-1-yl)-N-methylethan-1-amine (CAS 81998-10-9)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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