2-(3,4-Dimethoxyphenyl)pyrimido-[1,2-a]benzimidazol-4(1H)-one CAS 903440-36-8
| CAS No. | 903440-36-8 |
| Molecular Formula | C18H15N3O3 |
| Molecular Weight | 321.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 321.33 g/mol gives 2-(3,4-Dimethoxyphenyl)pyrimido-[1,2-a]benzimidazol-4(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(3,4-Dimethoxyphenyl)pyrimido-[1,2-a]benzimidazol-4(1H)-one (CAS 903440-36-8), a certified reference material (molecular formula C18H15N3O3, MW 321.33 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H15N3O3, 2-(3,4-Dimethoxyphenyl)pyrimido-[1,2-a]benzimidazol-4(1H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 321.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 2-(3,4-Dimethoxyphenyl)pyrimido-[1,2-a]benzimidazol-4(1H)-one 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 | C18H15N3O3 |
| Molecular Weight | 321.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Dimethoxyphenyl Standards
- Ethyl 2-[4-(2,4-dimethoxyphenyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]acetate (CAS 861206-37-3)
- N-(2,4-Dimethoxyphenyl)benzofuro[3,2-d]pyrimidin-4-amine (CAS 847379-79-7)
- 1-[3-(3,4-Dimethoxyphenyl)propanoyl]piperidine-4-carboxylic acid (CAS 1010891-44-7)
- (3,4-Dimethoxyphenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanone (CAS 478031-28-6)
- 1-Butyl-2-(2,3-dimethoxyphenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 951949-97-6)
- 5-(3,4-Dimethoxyphenyl)-4-((tetrahydrofuran-2-yl)methyl)-4H-1,2,4-triazole-3-thiol (CAS 917746-92-0)
- N-[1-(3,4-Dimethoxyphenyl)-3-hydroxypropyl]thiophene-2-carboxamide (CAS 866149-48-6)
- 3-(3,4-Dimethoxyphenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 174502-40-0)
Recommended Standards
- 2-(1-(3,5-Dimethylphenyl)-5-methyl-1H-1,2,3-triazol-4-yl)-5-(furan-2-yl)-1,3,4-oxadiazole (CAS 950236-02-9)
- 2-(4-(4-(Pyridin-2-yl)pyrimidin-2-yl)phenoxy)acetohydrazide (CAS 477857-44-6)
- 2-((5-(4-Nitrophenyl)-1,3,4-thiadiazol-2-yl)amino)thiazol-4(5H)-one (CAS 89335-20-6)
- 2-(Benzo[d][1,3]dioxol-5-yl)-6,8-dimethylquinoline-4-carboxylic acid (CAS 588674-04-8)
- 2-((4-Chlorophenyl)thio)-1-(4-((3,4-dichlorobenzyl)oxy)phenyl)ethan-1-one (CAS 882079-40-5)
- Aminocaproic Acid Impurity 3 (CAS 2073-32-7)
- 6-Butoxy-5-methylpyridine-3-carboxylic acid (CAS 2027444-93-3)
- 7-Amino-2-(2-hydroxyethyl)-3,4-dihydroisoquinolin-1(2h)-one (CAS 1407067-86-0)
- Isopropyl 5-carbamoyl-2-(2-chloroacetamido)-4-methylthiophene-3-carboxylate (CAS 669747-33-5)
- 2-Fluoro-1-(methylsulfanyl)-3-(trifluoromethyl)benzene (CAS 1824423-80-4)
- 1-(2-Fluoroethyl)piperidine-3-sulfonamide hydrochloride (CAS 2126162-43-2)
- (3S,4R,5S)-Tert-Butyl 4-(((benzyloxy)carbonyl)amino)-3-hydroxy-5-methylheptanoate (CAS 2381040-37-3)
- (Prop-2-en-1-yl)[(pyridin-3-yl)methyl]amine dihydrochloride (CAS 1240572-00-2)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
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