3,3'-(Isoindoline-1,3-diylidene)bis(quinoline-2,4(1H,3H)-dione) CAS 85223-06-9
| CAS No. | 85223-06-9 |
| Molecular Formula | C26H15N3O4 |
| Molecular Weight | 433.42 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 3,3'-(Isoindoline-1,3-diylidene)bis(quinoline-2,4(1H,3H)-dione).
3,3'-(Isoindoline-1,3-diylidene)bis(quinoline-2,4(1H,3H)-dione) (CAS 85223-06-9), molecular formula C26H15N3O4 and molecular weight 433.42 g/mol, is a CATO reference standard with documented purity and traceability.
3,3'-(Isoindoline-1,3-diylidene)bis(quinoline-2,4(1H,3H)-dione) (C26H15N3O4) contains a steroid 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.
As a certified reference material (CRM), 3,3'-(Isoindoline-1,3-diylidene)bis(quinoline-2,4(1H,3H)-dione) 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 | C26H15N3O4 |
| Molecular Weight | 433.42 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 3 |
Related Isoindoline Standards
- N-Isoindoline-1,3-dione Mexiletine (CAS 138528-16-2)
- 1-(Isoindoline-2-carbonyl)cyclopropanecarboxylic acid (CAS 1459289-81-6)
- Isoindoline-5-sulfonamide (CAS 1306603-24-6)
- Ethyl isoindoline-4-carboxylate (CAS 1311258-57-7)
- Ethyl isoindoline-5-carboxylate (CAS 185059-32-9)
- Ethyl isoindoline-2-carboxylate (CAS 61517-19-9)
- Isoindoline-2-carbonyl chloride (CAS 3432-58-4)
- Isoindoline-1,3-dithione (CAS 18138-19-7)
Recommended Standards
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-4-[(4-chlorophenyl)sulfanyl]-5,6,7,8-tetrahydroquinazoline (CAS 339019-14-6)
- Methyl 3-((tert-butoxycarbonyl)amino)-5-(2,2,2-trifluoro-1-((methylsulfonyl)oxy)ethyl)thiophene-2-carboxylate (CAS 2163771-83-1)
- 2-{[(2-chlorophenyl)methyl]sulfanyl}-4-[(4-chlorophenyl)sulfanyl]-5,6,7,8-tetrahydroquinazoline (CAS 339019-41-9)
- Trazodone Impurity 31 (CAS CATO-C4X-177231)
- 2-(1-Methyl-1H-1,2,4-triazol-3-yl)ethan-1-amine (CAS 34392-57-9)
- Frovatriptan Impurity 5 (CAS 473927-51-4)
- 1-(2,5-Difluorophenyl)butan-2-ol (CAS 1250597-76-2)
- methyl 2-(4-(1-(tert-butoxycarbonyl)piperidin-3-yl)phenyl)-2H-indazole-7-carboxylate (CAS 1038915-90-0)
- Difelikefalin Impurity 59 (CAS 1821319-30-5)
- Furosemide Impurity 57 (CAS 5428-37-5)
- 6-bromo-7-fluoro-8-methyl-4H-chromen-4-one (CAS 2924578-84-5)
- 2-Bromo-3-phenyl-5H-imidazo[1,2-c]pyrido[3,4-e][1,3]oxazine (CAS 1402603-85-3)
- (R)-1-(4-chloro-3-fluorophenyl)ethan-1-amine (CAS 1114559-14-6)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
Why CATO?
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