2',5'-Dimethyl-[1,1':4',1''-terphenyl]-4,4''-diamine CAS 152219-88-0
| CAS No. | 152219-88-0 |
| Molecular Formula | C20H20N2 |
| Molecular Weight | 288.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2',5'-Dimethyl-[1,1':4',1''-terphenyl]-4,4''-diamine (C20H20N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. 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 2',5'-Dimethyl-[1,1':4',1''-terphenyl]-4,4''-diamine (CAS 152219-88-0), a certified reference material (molecular formula C20H20N2, MW 288.39 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C20H20N2 |
| Molecular Weight | 288.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 2000 |
| Nitrogen Atoms | 2 |
Related Dimethyl Standards
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Recommended Standards
- N,N'-bis(2-methylphenyl)benzene-1,4-diamine (CAS 15017-02-4)
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- N-[(1Z)-5,5-Dimethyl-3-(morpholin-4-yl)cyclohex-2-en-1-ylidene]-5-methyl-2H-pyrazol-3-amine (CAS 1488517-18-5)
- 2-(Methylthio)-7-(m-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1708079-64-4)
- 7-Chloroimidazo[1,2-a]pyridin-3-amine (CAS 1289083-20-0)
- 3-{4-chloro-5,6-dimethylthieno[2,3-d]pyrimidin-2-yl}pyridine (CAS 742094-64-0)
- tert-Butyl-2-(cyclopentylamino)cyclohexylcarbamate (CAS 1824411-24-6)
- 1-(4-Bromophenyl)-N,N-dimethylpyrrolidin-3-amine (CAS 1280520-90-2)
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- 2-(5-Amino-3-(3-fluorophenyl)-1h-pyrazol-1-yl)acetic acid (CAS 1284422-70-3)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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