4-Ethoxy-2,3-diphenyl-1H-indole CAS 103973-37-1
| CAS No. | 103973-37-1 |
| Molecular Formula | C22H19NO |
| Molecular Weight | 313.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Ethoxy-2,3-diphenyl-1H-indole 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.
4-Ethoxy-2,3-diphenyl-1H-indole (CAS 103973-37-1), molecular formula C22H19NO and molecular weight 313.39 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H19NO, 4-Ethoxy-2,3-diphenyl-1H-indole 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 313.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C22H19NO |
| Molecular Weight | 313.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Ethoxy Standards
- 6-Ethoxy-2,3-diphenyl-1H-indole (CAS 103973-38-2)
- 2-Ethoxy-N-(3-hydroxycyclohexyl)-1-naphthamide (CAS 1396773-89-9)
- 2-Ethoxy-N-((1-(4-fluorophenyl)cyclopropyl)methyl)benzamide (CAS 1049388-52-4)
- 5-Ethoxy-2,4-dimethyl-N-((tetrahydrofuran-2-yl)methyl)benzenesulfonamide (CAS 902249-32-5)
- 2-(2-Ethoxy-6-formylphenoxy)-N-(p-tolyl)acetamide (CAS 1427020-68-5)
- 2-(2-Ethoxy-4-formylphenoxy)-N-(m-tolyl)acetamide (CAS 247592-66-1)
- 2-(2-Ethoxy-4-formylphenoxy)-N-(o-tolyl)acetamide (CAS 247592-68-3)
- 2-(2-Ethoxy-4-formylphenoxy)-N-(p-tolyl)acetamide (CAS 247592-65-0)
Recommended Standards
- 1-(3,4-Dimethoxyphenyl)-2,6,6-trimethyl-4,5,6,7-tetrahydro-1H-indol-4-one (CAS 1024222-56-7)
- 2-Butenoic acid, 4-[4-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-1-piperazinyl]- (CAS 1022150-13-5)
- tert-Butyl 4-(isoquinolin-3-yl)piperazine-1-carboxylate (CAS 1042986-15-1)
- 1-(4-((5-(4-Aminophenoxy)pentyl)oxy)phenyl)ethan-1-one (CAS 102010-61-7)
- 2,4,5-Trichloro-N-[4-(tetrahydro-2-furanylmethoxy)benzyl]aniline (CAS 1040681-29-5)
- 2-Cyclopropyloxypyridine 4-pinacolboronate (CAS 1346707-95-6)
- 4-Chloro-4-(5,5-dimethyl-1,3-dioxan-2-yl)butyrophenone (CAS 898785-90-5)
- 6-Cyano-3,5-dihydro-1-hydroxy-7-methyl-5-oxo-2-indolizinecarboxylic Acid Methyl Ester (CAS 73427-92-6)
- Ethyl 3,4-difluoro-5-methylphenylacetate (CAS 1804515-49-8)
- H-Phg-OEt · HCl (CAS 59410-82-1)
- Ceftazidime Impurity 101 (CAS CATO-C4X-1212101)
- 1-(5-Mercapto-1-methyl-1H-pyrazol-4-yl)ethanone (CAS 111493-63-1)
- [4-(trideuteriomethoxymethyl)norbornan-1-yl]methanol (CAS 2725774-25-2)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com