2-{4,5-Bis[(6-(2-ethoxy-2-oxoethoxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2E CAS 1239877-06-5
| CAS No. | 1239877-06-5 |
| Molecular Formula | C50H44N4O11 |
| Molecular Weight | 876.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-{4,5-Bis[(6-(2-ethoxy-2-oxoethoxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2E (C50H44N4O11) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-{4,5-Bis[(6-(2-ethoxy-2-oxoethoxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2E (CAS 1239877-06-5), molecular formula C50H44N4O11 and molecular weight 876.90 g/mol, is a CATO reference standard with documented purity and traceability.
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-{4,5-Bis[(6-(2-ethoxy-2-oxoethoxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2E 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 | C50H44N4O11 |
| Molecular Weight | 876.90 g/mol |
| 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) | 31.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Bis Standards
- 2-{4,5-Bis[(6-(2-ethoxy-2-oxohydroxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2A (CAS 1239877-07-6)
- 7-Benzyl-3-ethoxy-6-ethyl-2H-thiazolo[3,2-a]pyrimidin-5(3H)-one (CAS 199852-32-9)
- 5-Benzyl-3-ethoxy-6-isopropyl-2H-thiazolo[3,2-a]pyrimidin-7(3H)-one (CAS 199852-26-1)
- 2-Ethoxy-1-[[2'-[2-(trityl)-2H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic Acid Methyl Ester-d4 (Candesartan Impurity) (CAS 1793997-59-7)
- 22-Ethoxy-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid methyl ester (Candesartan Cilexetil Impurit) (CAS 150058-29-0)
- 2-Ethoxy-1-[[2’-[2-(trityl)-2H-tetrazol-5-yl][1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic Acid Methyl Ester (Candesartan Impurity) (CAS 1796932-77-8)
- 5-Benzyl-3-ethoxy-6-ethyl-2H-thiazolo[3,2-a]pyrimidin-7(3H)-one (CAS 199852-15-8)
- 2-(o-Ethoxy)-4,5-diphenylimidazole-1,2'-dimer (CAS 1842-62-2)
Recommended Standards
- Lusutrombopag Impurity 48 (CAS CATO-C4X-208448)
- (2S,3S,4R,5R,6S)-5-(Benzyloxy)-6-((5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-4-oxo-4H-chromen-3-yl)oxy)-2-methyltetrahydro-2H-pyran-3,4-diyl diacetate (CAS 849938-27-8)
- Lusutrombopag Impurity 46 (CAS CATO-C4X-208446)
- (R,R)-Chiraphite (CAS 149646-83-3)
- Methyl 4-(methylamino)quinazoline-6-carboxylate (CAS 648449-02-9)
- 4-(Pyren-1-ylmethylene)-2-(o-tolyl)oxazol-5(4H)-one (CAS 88351-55-7)
- Chloro[tris(4-chlorophenyl)phosphine]gold (CAS 65295-04-7)
- 4-Bromo-3-methyl-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1536707-43-3)
- 1,1,2,2,3,3,4,4,4-Nonafluoro-N-(2-hydroxyethyl)-N-methyl-1-butanesulfonamide (CAS 34454-97-2)
- 1-Phenyl-1h-imidazol-2-amine (CAS 21722-08-7)
- 6-Fluoro-2-(4-fluorophenyl)quinoline-4-carboxylic acid (CAS 1543-31-3)
- 2-(1-(2-Methoxy-2-oxoethyl)cyclopentyl)acetic acid (CAS 321602-27-1)
- 3-(Propan-2-yloxy)cyclobutan-1-one (CAS 1518213-91-6)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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