7,8-Dihydroindolo[2',3':3,4]pyrido[1,2-b][2,7]naphthyridin-5(13H)-one CAS 57103-51-2
| CAS No. | 57103-51-2 |
| Molecular Formula | C18H13N3O |
| Molecular Weight | 287.32 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 7,8-Dihydroindolo[2',3':3,4]pyrido[1,2-b][2,7]naphthyridin-5(13H)-one.
7,8-Dihydroindolo[2',3':3,4]pyrido[1,2-b][2,7]naphthyridin-5(13H)-one (CAS 57103-51-2) is a high-purity analytical reference standard with the molecular formula C18H13N3O and a molecular weight of 287.32 g/mol.
The molecular framework of 7,8-Dihydroindolo[2',3':3,4]pyrido[1,2-b][2,7]naphthyridin-5(13H)-one (C18H13N3O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H13N3O |
| Molecular Weight | 287.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
Related Dihydroindolo Standards
- 5,11-Dihydroindolo[3,2-b]carbazole-6-carbonitrile (CAS 1956321-98-4)
- 5,11-Dihydroindolo[3,2-b]carbazole-6-carboxamide (CAS 1956324-71-2)
- 5,11-Dihydroindolo[3,2-b]carbazole-6-carboxylic acid (CAS 744207-11-2)
- 6-Methyl-5,7-dihydroindolo[2,3-b]carbazole (CAS 112485-52-6)
- 6-Methyl-5,11-dihydroindolo[3,2-b]carbazole (CAS 229020-91-1)
- Methyl 5,11-dihydroindolo[3,2-b]carbazole-6-carboxylate (CAS 1956355-84-2)
- 5,7-Dihydroindolo[2,3-b]carbazole (CAS 111296-90-3)
- 5,12-Dihydroindolo[3,2-a]carbazole (CAS 111296-91-4)
Recommended Standards
- 6-Oxo-2-phenyl-4-(p-tolyl)-1,6-dihydropyrimidine-5-carbonitrile (CAS 477853-90-0)
- 8-(2,2-Dimethoxyethyl)-5-methyl-7,8-dihydro-6H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidine-3-carbonitrile (CAS 860610-82-8)
- 6-[5-(4-Methylphenyl)-1,3,4-oxadiazol-2-yl]quinoline (CAS 866018-97-5)
- Alk 5 Inhibitor II (CAS 446859-33-2)
- 3-Bromo-2-(bromomethyl)benzaldehyde (CAS 1261438-35-0)
- tert-Butyl 2-(hydroxymethyl)-4-methylpiperazine-1-carboxylate (CAS 1450762-38-5)
- 2-Methyl-3-methoxyBenzoylchloride (CAS 24487-91-0)
- 5,7-Di-tert-butylbenzofuran-3(2H)-one (CAS 1153450-65-7)
- 3,3-Dimethylindoline-2-carboxylic acid (CAS 140397-33-7)
- 2-(3,4-Dimethylphenyl)-6-((2-hydroxyethyl)amino)-1h-benzo[de]isoquinoline-1,3(2H)-dione (CAS 392670-85-8)
- Pregnanetriolone (CAS 603-99-6)
- 2-Allylphenol (CAS 1745-81-9)
- N-(2-methyl-2-((2,4,6-trimethylbenzyl)thio)propyl)-3-nitrobenzamide (CAS 338962-62-2)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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