7-Bromo-8-((4-methylpiperazin-1-yl)methyl)-2-oxo-2H-selenopheno[3,2-h]chromene-3-carboxylic acid CAS 2173398-23-5
| CAS No. | 2173398-23-5 |
| Molecular Formula | C18H17BrN2O4Se |
| Molecular Weight | 484.20 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 7-Bromo-8-((4-methylpiperazin-1-yl)methyl)-2-oxo-2H-selenopheno[3,2-h]chromene-3-carboxylic acid.
7-Bromo-8-((4-methylpiperazin-1-yl)methyl)-2-oxo-2H-selenopheno[3,2-h]chromene-3-carboxylic acid (CAS 2173398-23-5) is a high-purity analytical reference standard with the molecular formula C18H17BrN2O4Se and a molecular weight of 484.20 g/mol.
The molecular framework of 7-Bromo-8-((4-methylpiperazin-1-yl)methyl)-2-oxo-2H-selenopheno[3,2-h]chromene-3-carboxylic acid (C18H17BrN2O4Se) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine 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. 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 | C18H17BrN2O4Se |
| Molecular Weight | 484.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- Methyl 7-bromo-8-(1-hydroxycyclohexyl)-2-oxo-2H-selenopheno[3,2-h]chromene-3-carboxylate (CAS 2173398-09-7)
- Benzyl 3-(1-bromo-5,8-dichloroimidazo[1,5-a]pyrazin-3-yl)piperidine-1-carboxylate (CAS 1419223-18-9)
- 2-(5-(5-(4-(2-Bromo-5-fluorophenoxy)piperidin-1-yl)-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl)acetic acid (CAS 1030612-87-3)
- N-(4-bromo-2-methylphenyl)-2-((3-cyano-4-(trifluoromethyl)-5,6,7,8-tetrahydroquinolin-2-yl)thio)acetamide (CAS 626227-81-4)
- 3-Bromo-5-nitro-1-trityl-1H-indazole (CAS 942189-39-1)
- (βR)-6-Bromo-2-methoxy-α-1-naphthalenyl-β-phenyl-3-quinolineethanol (CAS 1298044-24-2)
- Methyl 7-bromo-2-((1r,4r)-4-((tert-butoxycarbonyl)amino)cyclohexyl)-2,4-dimethylbenzo[d][1,3]dioxole-5-carboxylate (CAS 1809337-62-9)
- 5-Bromo-13-(4-chlorophenyl)-6-hydroxy-11-phenyl-8-thia-3,10-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),5,10,12-pentaen-4-one (CAS 939888-55-8)
Recommended Standards
- 2-(Triphenylstannyl)benzo[d]thiazole (CAS 124187-26-4)
- Diethyl (1H,1H,2H,2H-perfluorooctyl)phosphonate (CAS 350608-55-8)
- Diazene, 1,2-bis[4-(4-bromobutoxy)phenyl]- (CAS 222046-22-2)
- {2-[(4-bromophenyl)sulfanyl]pyridin-3-yl}methyl N-(3,5-dichlorophenyl)carbamate (CAS 478031-19-5)
- 3-(4-((Methylamino)methyl)-1H-imidazol-1-yl)thietane 1,1-dioxide (CAS 1853052-18-2)
- 1H-pyrazolo[4,3-c]pyridine-6-carboxylic acid (CAS 1256802-03-5)
- Tilisolol (CAS 85136-71-6)
- 4-(6-FLuoro-2,3,4,9-tetrahydro-1h-beta-carbolin-1-yl)-n,n-dimethylaniline (CAS 532382-00-6)
- 4-(4-Methylphenoxy)-2-{[(4-methylphenyl)methyl]sulfanyl}-5,6,7,8-tetrahydroquinazoline (CAS 343373-58-0)
- Pinaverium Bromide Impurity 15 (CAS 4747-61-9)
- Tafamidis Impurity 3 (CAS 1183404-30-9)
- 2-(difluoromethyl)-4-methylbenzonitrile (CAS 1261823-25-9)
- 3-Methoxy-5-[4-(trifluoromethoxy)phenyl]pyridine (CAS 1261853-71-7)
- Cholecystokinin Octapeptide (sulfated) (H-2060.0005) (CAS 25679-23-6)
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