4',5'-Dimethyl-1,1':2',1''-terphenyl CAS 23063-12-9
| CAS No. | 23063-12-9 |
| Molecular Formula | C20H18 |
| Molecular Weight | 258.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4',5'-Dimethyl-1,1':2',1''-terphenyl (C20H18) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4',5'-Dimethyl-1,1':2',1''-terphenyl (CAS 23063-12-9), a certified reference material (molecular formula C20H18, MW 258.36 g/mol) for analytical method development and quality control.
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.
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 | C20H18 |
| Molecular Weight | 258.36 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Dimethyl Standards
- 4-((((1,3-Dimethyl-1h-pyrazol-4-yl)methyl)amino)methyl)-N,N-dimethylaniline (CAS 1006461-43-3)
- 4-({[(1,5-dimethyl-1h-pyrazol-4-yl)methyl]amino}methyl)-n,n-dimethylaniline (CAS 1006959-98-3)
- N-((2,5-Dimethyl-1-phenyl-1h-pyrrol-3-yl)methyl)-2-methoxyethanamine (CAS 1096952-53-2)
- [(dimethyl-1,3-oxazol-2-yl)methyl][1-(4-ethylphenyl)ethyl]amine (CAS 1183362-14-2)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-N,N-diethyl-2H-azepin-7-amine (CAS 193151-02-9)
- 2,2''-Dimethyl-1,1':4',1''-terphenyl (CAS 53092-64-1)
- 2',5'-Dimethyl-1,1':4',1''-terphenyl (CAS 20260-22-4)
- 3,3-Dimethyl-p-terphenyl (CAS 97295-31-3)
Recommended Standards
- 4-(tert-Butyl)-2-(5,6,7,8-tetrahydroquinolin-2-yl)-4,5-dihydrooxazole (CAS 2303959-54-6)
- 4-[(2-Hydroxy-ethyl)-methyl-amino]-piperidine-1-carboxylic acid tert-butyl ester (CAS 864655-25-4)
- 4-(Benzo[d]thiazol-2-ylthio)aniline (CAS 25712-17-8)
- 4-Cyclohexyl-3-methyl-4-oxo-3-phenylbutanal (CAS 228419-04-3)
- 2-methyl-3-(1,3-oxazol-2-yl)aniline dihydrochloride (CAS 1909310-04-8)
- Methyl 4-chlorothiophene-3-carboxylate (CAS 88770-14-3)
- 3-Chloro-N,N-dimethylaniline (CAS 6848-13-1)
- 4-tert-Butyl-2-hydroxybenzoic acid (CAS 4578-63-6)
- 3-Chloro-n-(2,3-dihydro-1h-inden-5-yl)propanamide (CAS 908494-47-3)
- tert-Butyl 4-((4-hydroxypyridin-3-yl)sulfonyl)piperazine-1-carboxylate (CAS 1352540-35-2)
- 2-Amino-6-isobutyl-4-phenylnicotinonitrile (CAS 5105-94-2)
- 1-(3-Hydroxypropyl)-3-methylurea (CAS 58168-07-3)
- (E)-[(2,4-Dichlorophenyl)methoxy]({4-[(4-methylphenyl)sulfanyl]-3-nitrophenyl}methylidene)amine (CAS 477852-06-5)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
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