4-((9H-Fluoren-9-ylidene)methyl)-N-methylaniline CAS 21888-92-6
| CAS No. | 21888-92-6 |
| Molecular Formula | C21H17N |
| Molecular Weight | 283.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-((9H-Fluoren-9-ylidene)methyl)-N-methylaniline (C21H17N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 283.37 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-((9H-Fluoren-9-ylidene)methyl)-N-methylaniline (CAS 21888-92-6) is a high-purity analytical reference standard with the molecular formula C21H17N and a molecular weight of 283.37 g/mol.
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.
CATO manufactures 4-((9H-Fluoren-9-ylidene)methyl)-N-methylaniline 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 | C21H17N |
| Molecular Weight | 283.37 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 |
| 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.) | 1963 |
| Nitrogen Atoms | 1 |
Related H Standards
- 4-((9H-Fluoren-9-yl)thio)butanamide (CAS 374722-01-7)
- (9H-Fluoren-9-yl)methyl (2-aminoethyl)carbamate (CAS 166410-32-8)
- (9H-fluoren-9-yl)methyl 1,2-dimethylhydrazinecarboxylate (CAS 858353-45-4)
- 2-(9H-Fluoren-9-ylidene)-1-phenylethanone (CAS 5653-33-8)
- 2-(2-(9H-Fluoren-9-yl)phenyl)acetonitrile (CAS 121820-25-5)
- (9H-Fluoren-9-yl)methyl 2-oxoethylcarbamate (CAS 156939-62-7)
- 4-((9H-Fluoren-2-yl)amino)-4-oxobutanoic acid (CAS 59935-47-6)
- 2-(9H-Fluoren-9-yl)benzoic acid (CAS 64611-30-9)
Recommended Standards
- 3-Methyl-2-[3-sulfanyl-5-(thiophen-2-yl)-4h-1,2,4-triazol-4-yl]butanoic acid (CAS 869472-72-0)
- 4-(1H-Benzimidazol-2-yl)-1-cyclohexylpyrrolidin-2-one (CAS 942810-98-2)
- 3-Benzhydryl-1H-indole (CAS 53924-26-8)
- 4-(2-Aminothiazol-4-yl)-N,N-dimethylbenzenesulfonamide (CAS 610275-82-6)
- tert-Butyl (1-(2-amino-1-(3-phenoxyphenyl)ethyl)pyrrolidin-3-yl)carbamate (CAS 886365-03-3)
- 4-(3-(2-Cyano-4,5-dimethoxyphenyl)thioureido)-N,N-dimethylbenzenesulfonamide (CAS 692287-56-2)
- 2-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethanol (CAS 741699-47-8)
- 6-bromo-5-methyl-indoline (CAS 162100-99-4)
- 1-(2-Oxo-2H-chromen-6-yl)-3-phenyl-2-thioxoimidazolidin-4-one (CAS 66042-99-7)
- (2R)-2-((tert-butoxycarbonyl)amino)-4-(methylsulfinyl)butanoic acid (CAS 81444-65-7)
- Fmoc-NH-PEG2-CH2CH2COOH (CAS 872679-70-4)
- n-(2,4-Dichlorobenzyl)naphthalen-1-amine (CAS 356531-71-0)
- 2-(2-(Isopropylthio)pyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352541-26-4)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
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