3,4-Di(3-indolyl)-1H-pyrrole-2,5-dione CAS 119139-23-0
| CAS No. | 119139-23-0 |
| Molecular Formula | C20H13N3O2 |
| Molecular Weight | 327.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3,4-Di(3-indolyl)-1H-pyrrole-2,5-dione (CAS 119139-23-0), molecular formula C20H13N3O2 and molecular weight 327.34 g/mol, is a CATO reference standard with documented purity and traceability.
3,4-Di(3-indolyl)-1H-pyrrole-2,5-dione (C20H13N3O2) contains a steroid core, 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.
CATO manufactures 3,4-Di(3-indolyl)-1H-pyrrole-2,5-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H13N3O2 |
| Molecular Weight | 327.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Di Standards
- N’-[(3-Indolyl)methylene]-2-[(3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)amino]acetohydrazide (CAS 307508-65-2)
- N’-[(3-Indolyl)methylene]-3-[(3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)amino]propanehydrazide (CAS 307508-66-3)
- 1-[4-(2-Indolyl)-1-piperidyl]-3-(2-hydroxyphenyl)-1-propanone (CAS 1252149-81-7)
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- 4-(3-Indolyl)-1-(2-phthalimidoethyl)piperidine (CAS 57311-64-5)
- 3-(1H-2-INDOLYL)-4-(4-METHOXYPHENYL)-1-METHYL-1H-2-QUINOLINONE (CAS 1010128-58-1)
- (E)-5-[(3-Indolyl)methylene]-2-imino-1,3-dimethyl-4-imidazolidinone (CAS 63153-56-0)
- Methyl 2-[[2-(3-Indolyl)ethyl]amino]acetate (CAS 89827-47-4)
Recommended Standards
- 2-(4-Ethoxyphenyl)-N-(5-(1-methyl-1H-pyrazol-5-yl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 1171899-63-0)
- N-(1-(4-Ethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(furan-2-yl)-1H-pyrazol-5-yl)propionamide (CAS 1207016-86-1)
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-3-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)propanamide (CAS 1105228-88-3)
- 1-Ethyl-3-methyl-N-(5-(phenoxymethyl)-1,3,4-oxadiazol-2-yl)-1H-pyrazole-5-carboxamide (CAS 1286696-41-0)
- 6-(3,4-Dimethoxyphenyl)-3-(thiophen-2-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole (CAS 353287-72-6)
- 6-Methyl-2-oxo-2H-pyran-4-yl pivalate (CAS 22131-82-4)
- 5-Iodopentanenitrile (CAS 6727-75-9)
- N-(2-Aminophenyl)-4-((6-methoxy-2H-indazol-2-yl)methyl)benzamide (CAS 920315-18-0)
- 3-Chloro-2-(5-(dimethoxymethyl)-1H-pyrazol-1-yl)-5-(trifluoromethyl)pyridine (CAS 318958-91-7)
- α-Acetylphenylacetonitrile (CAS 4468-48-8)
- Benzo[b]thiophene-5-sulfonamide (CAS 145951-27-5)
- 2-Chloro-N-cyclohexyl-N-(2,5-dioxo-1-phenylpyrrolidin-3-yl)acetamide (CAS 1858240-89-7)
- N-Isopropyl-1H-indazol-6-amine (CAS 1152873-01-2)
- Macrophage Inhibitory Peptide (CAS 41961-56-2)
Why CATO?
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