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
| CAS No. | 1239877-07-6 |
| Molecular Formula | C46H36N4O11 |
| Molecular Weight | 820.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 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 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
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), molecular formula C46H36N4O11 and molecular weight 820.80 g/mol, is a CATO reference standard with documented purity and traceability.
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 (C46H36N4O11) contains a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-oxohydroxy)-2-methylquinolin-8-ylamino)methyl]-6-hydoxy-3-oxo-3H-xanthen-9-yl}benzoic acid FL2A 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 | C46H36N4O11 |
| Molecular Weight | 820.80 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
- 7-Benzyl-3-ethoxy-6-ethyl-2H-thiazolo[3,2-a]pyrimidin-5(3H)-one (CAS 199852-32-9)
- 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)
- 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
- 3'-SLeX 3'-Sialyl-Lewis X 3'-Sialyl-Lewis-X tetrasaccharide 98603-84-0 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>4)-O-[6-deoxy-a-L-galactopyranosyl-(1>3)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2>3)-O-beta-D-galactopyranosyl-(1>4)-O-[6-deoxy-alpha-L-galactopyranosyl-(1>3)]-2-(acetylamino)-2-deoxy- SLex SSEA 1 Sialyl Lex tri Sialyl-Lewis X a-NeuNAc-(2>3)-b-D-Gal-(1>4)(a-L-Fuc-[1>3])-D-GlcNAc (CAS 98603-84-0)
- 2-{Bis[3,5-bis(trifluoromethyl)phenyl]phosphino}-3,6-dimethoxy-2′,4′,6′-triisopropyl-1,1′ -Biphenyl (CAS 1160861-60-8)
- 3'-SLea 3'-Sialyl Lewis A 92448-22-1 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>3)-O-[6-deoxy-a-L-galactopyranosyl-(1>4)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-2-(acetylamino)-2-deoxy- SLea Sialyl Lea tri Sialyl Lewis a Sialyl-Lewis a a-NeuNAc-(2>3)-b-D-Gal-(1>3)-(a-L-Fuc-[1>4])-D-GlcNAc (CAS 92448-22-1)
- Hydro[1,2-phenylenebis(dimethylsilylene)]bis(triphenylphosphine)rhodium (CAS 1039067-04-3)
- (R)-1-Boc-4-(1-aminoethyl)piperidine (CAS 1036027-86-7)
- (3-tert-Butyl-4,5-dihydro-1,2-oxaZol-5-yl)methanol (CAS 191676-58-1)
- 5-Chloro-N-(2-ethoxyphenyl)-2-(methylthio)pyrimidine-4-carboxamide (CAS 898646-93-0)
- 1-Bromo-3-(chloromethyl)naphthalene (CAS 1261469-74-2)
- N2,N2,N4,N4-tetramethylpyridine-2,4-diamine (CAS 149683-91-0)
- 2-Methyl-4-(1-oxo-hexahydro-thiopyran-4-yl)-pyridine (CAS 1020717-37-6)
- 2-(Methylthio)-5-((4-nitrophenyl)thio)pyrimidine-4-carboxylic acid (CAS 61727-09-1)
- 2-(Methylthio)benzo[d]oxazole-4-carboxaldehyde (CAS 1806516-86-8)
- 4-Fluorooctahydrocyclopenta[c]pyrrole (CAS 1423117-37-6)
- Insulin degludec (CAS 844439-96-9)
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