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
| CAS No. | 956947-77-6 |
| Molecular Formula | C27H21N3O5 |
| Molecular Weight | 467.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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), molecular formula C27H21N3O5 and molecular weight 467.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 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 (C27H21N3O5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 467.47 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 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 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 | 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)
- 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)
- 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
- K252a (CAS 97161-97-2)
- 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)
- (S)-4-(((Benzyloxy)carbonyl)amino)-5-(((S)-1-carboxy-2-(1H-indol-3-yl)ethyl)amino)-5-oxopentanoic acid (CAS 73170-51-1)
- N-(3-(5,7-Dimethylbenzo[d]oxazol-2-yl)phenyl)-5-(2-methyl-4-nitrophenyl)furan-2-carboxamide (CAS 328975-78-6)
- N1-Methyl-N1-(1-methylpyrrolidin-3-yl)ethane-1,2-diamine (CAS 1241386-61-7)
- (3-Chlorophenyl)(3,5-dimethylphenyl)methanone (CAS 844884-98-6)
- (3-Methoxyphenyl)(4-methoxyphenyl)methanone (CAS 75731-44-1)
- Bicalutamide impurity A (CAS 113299-40-4)
- (3S,4R)-4-(2-chlorophenyl)-1-isobutylpyrrolidine-3-carboxylic acid (CAS 1186655-04-8)
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- 2-(6-Bromopyridin-2-yl)ethanamine (CAS 404034-81-7)
- (2,6-Difluorophenyl)(4-((2-phenyl-1H-imidazol-1-yl)methyl)piperidin-1-yl)methanone (CAS 1351661-50-1)
- 5-(3-Aminophenyl)pyrimidin-2-ol (CAS 1111109-04-6)
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