4,4'-(Benzo[c][1,2,5]selenadiazole-4,7-diyl)bis(3-methoxybenzoic acid) CAS 2758181-30-3
| CAS No. | 2758181-30-3 |
| Molecular Formula | C22H16N2O6Se |
| Molecular Weight | 483.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4,4'-(Benzo[c][1,2,5]selenadiazole-4,7-diyl)bis(3-methoxybenzoic acid) (CAS 2758181-30-3), a certified reference material (molecular formula C22H16N2O6Se, MW 483.33 g/mol) for analytical method development and quality control.
4,4'-(Benzo[c][1,2,5]selenadiazole-4,7-diyl)bis(3-methoxybenzoic acid) (C22H16N2O6Se) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C22H16N2O6Se |
| Molecular Weight | 483.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 2 |
Related Benzo Standards
- 2-(Benzo[d][1,3]dioxol-5-yl)-1-oxo-N-(pyridin-4-ylmethyl)-3-(thiophen-3-yl)-1,2,3,4-tetrahydroisoquinoline-4-carboxamide (CAS 1023500-67-5)
- [4-[(4-Benzo[b]thien-2-yl-2-pyrimidinyl)amino]phenyl][4-(1-pyrrolidinyl)-1-piperidinyl]-methanone (CAS 873225-46-8)
- N-(Benzo[d]thiazol-2-yl)-2-((3-(2-methoxyphenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 362501-82-4)
- Methyl 2-(benzo[d][1,3]dioxole-5-carboxamido)-5-((2-ethoxyphenyl)carbamoyl)-4-methylthiophene-3-carboxylate (CAS 505095-52-3)
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- 2-(1H-benzo[d][1,2,3]triazol-1-yl)-2-(9H-carbazol-9-yl)-1,1-diphenylethan-1-ol (CAS 132724-62-0)
Recommended Standards
- N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)-3-(4-nitrophenoxy)thiophene-2-carboxamide (CAS 339015-29-1)
- 4-Chloro-2-(3-chlorophenyl)-5-(4-((4-fluorophenyl)sulfonyl)piperazin-1-yl)pyridazin-3(2H)-one (CAS 477867-39-3)
- N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)-3-(2-nitrophenoxy)thiophene-2-carboxamide (CAS 339015-24-6)
- 4-Chloro-N-(2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}ethyl)benzene-1-sulfonamide (CAS 338792-84-0)
- 1-(2,4-Difluoro-3-iodophenyl)ethanone (CAS 2383443-66-9)
- 2-Methoxy-5-methyl-4-nitrophenol (CAS 78792-72-0)
- 2,2,2-Trifluoro-N-(4-(methoxymethyl)-6-methyl-2-oxo-1,2-dihydroquinolin-7-yl)acetamide (CAS 865659-10-5)
- 3-Fluoro-2-piperidinomethyl benzophenone (CAS 898773-15-4)
- 4-Amino-2-bromo-5-fluorophenol (CAS 111856-96-3)
- Biotin-PEG11-Mal (CAS 1646619-56-8)
- 4-Chloro-2-fluoro-6-methoxybenzonitrile (CAS 1823366-82-0)
- 3-Acetyl-2-(trifluoromethyl)benzonitrile (CAS 1807177-22-5)
- 7-Methylisoindolin-4-ol (CAS 739365-32-3)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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