2-((11AS)-5-(4-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid CAS 956919-29-2
| CAS No. | 956919-29-2 |
| Molecular Formula | C27H21N3O5 |
| Molecular Weight | 467.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 467.47 g/mol gives 2-((11AS)-5-(4-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-((11AS)-5-(4-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid (CAS 956919-29-2), molecular formula C27H21N3O5 and molecular weight 467.47 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C27H21N3O5, 2-((11AS)-5-(4-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 467.47 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C27H21N3O5 |
| Molecular Weight | 467.47 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related AS Standards
- 2-((11AS)-5-(3-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid (CAS 957043-83-3)
- 4-((11AS)-5-(3-methoxyphenyl)-1,3-dioxo-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indol-2(3H)-yl)benzoic acid (CAS 956947-77-6)
- 1-[7-(4-Methoxyphenyl)-2-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidin-6-yl]-3,5-dimethyl-1H-pyrazole (CAS 956206-55-6)
- 4-{[3-(3-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-1-(3,4,5-trimethoxybenzoyl)piperidine (CAS 1775513-10-4)
- 4-(1-(2-(2-((4-Ethyl-5-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetyl)hydrazono)ethyl)phenyl acetate (CAS 303103-06-2)
- 7-[4-[Bis(4-methoxyphenyl)amino]phenyl]-2,1,3-benzothiadiazole-4-carboxaldehyde (CAS 2131058-21-2)
- 1-(4-Methoxyphenyl)-4-((3-methoxyphenyl)thio)-2-phenyl-6,7-dihydro-1H-indole-5-carbaldehyde (CAS 477869-31-1)
- 4-Methoxyphenyl 2-6-di-O-benzyl-β-D-galactopyranoside (CAS 159922-50-6)
Recommended Standards
- (S)-4-(((Benzyloxy)carbonyl)amino)-5-(((S)-1-carboxy-2-(1H-indol-3-yl)ethyl)amino)-5-oxopentanoic acid (CAS 73170-51-1)
- K252a (CAS 97161-97-2)
- 2'-Amino-5'-(4-carboxyphenyl)-4'-methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1842393-50-3)
- Methyl 2-(3-(3-fluoro-4-methylbenzoyl)-4-hydroxy-5-oxo-2-(pyridin-3-yl)-2,5-dihydro-1H-pyrrol-1-yl)-4-methylthiazole-5-carboxylate (CAS 617698-27-8)
- 3,6,9,12,15-Pentaoxahexacosan-1-ol (CAS 92691-26-4)
- (2-Cyclobutylthiazol-4-yl)methanamine (CAS 1359656-95-3)
- 1-(2-Phenylpropanoyl)piperidine-2-carboxylic acid (CAS 1285202-15-4)
- Atracurium Impurity 83 (CAS CATO-C4X-185083)
- 2-Methyl-5-(1H-pyrrol-1-yl)benzoic acid (CAS 444058-58-6)
- tert-Butyl (S)-(1-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)carbamate (CAS 887254-65-1)
- Oxacillin Impurity N1 (CAS 37699-31-3)
- Ticarcillin EP Impurity C (CAS 21080-92-2)
- Cyclohexyl 2-(2,5-dimethylphenyl)ethyl ketone (CAS 898754-22-8)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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