Tris(2,4-dimethylphenyl)phosphine CAS 49676-42-8
| CAS No. | 49676-42-8 |
| Molecular Formula | C24H27P |
| Molecular Weight | 346.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Tris(2,4-dimethylphenyl)phosphine (CAS 49676-42-8), molecular formula C24H27P and molecular weight 346.44 g/mol, is a CATO reference standard with documented purity and traceability.
Tris(2,4-dimethylphenyl)phosphine (C24H27P) contains organophosphorus functionality, 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).
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 | C24H27P |
| Molecular Weight | 346.44 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Tris Standards
- Tris(2,5-dimethylphenyl)phosphine (CAS 115034-38-3)
- 6-(3,4-Dimethylphenyl)-2-mercapto-4-(4-methoxyphenyl)nicotinonitrile (CAS 885270-05-3)
- 7-(2,4-Dimethylphenyl)-3-(thiophen-2-yl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine (CAS 848213-20-7)
- 2-[Bis(3,5-dimethylphenyl)phosphino]benzaldehyde (CAS 669091-00-3)
- 1-(2,4-Dimethylphenyl)-3-(3-methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 1146698-13-6)
- N-(2,6-Dimethylphenyl)-4-methyl-3-(3-morpholinopropyl)thiazol-2(3H)-imine (CAS 905781-66-0)
- 1-(3,5-Dimethylphenyl)-4-(3-(o-tolyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one (CAS 942034-56-2)
- 2-(4-(2,4-Dimethylphenyl)-2-(4-methylpiperazin-1-yl)thiazol-5-yl)acetic acid (CAS 1443291-74-4)
Recommended Standards
- tert-butyl N-(4-amino-5-fluoro-2-methyl-phenyl)-N-tert-butoxycarbonyl-carbamate (CAS 2665662-72-4)
- Febuxostat impurity 91 (CAS 1380049-42-2)
- Propan-2-yl 4-({3-cyano-5H,6H,7H,8H,9H-cyclohepta[b]pyridin-2-yl}sulfanyl)-3-oxobutanoate (CAS 488725-51-5)
- Tamsulosin Impurity 43 (CAS CATO-C4X-118743)
- (Z)-{[2-(benzyloxy)naphthalen-1-yl]methylidene}(methyl)oxidoazanium (CAS 338422-64-3)
- 2-({4-cyano-1,6-diazatricyclo[6.2.2.0^{2,7}]dodeca-2,4,6-trien-5-yl}sulfanyl)-N-[4-(trifluoromethoxy)phenyl]acetamide (CAS 728885-88-9)
- (2-Phenylethynyl)(tricyclohexylphosphine)gold (CAS 49788-63-8)
- Methyl 6-(1-ethyl-3,5-dimethyl-1h-pyrazol-4-yl)-1,3-dimethyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1170468-79-7)
- Imino(methyl)(4-(trifluoromethyl)phenyl)-l6-sulfanone (CAS 1622220-18-1)
- (S)-1-(3-Fluoro-4-methylphenyl)ethan-1-ol (CAS 1344930-48-8)
- 4-Amino-6-(((tert-butoxycarbonyl)amino)methyl)nicotinic acid (CAS 1393540-10-7)
- 5-(4-Bromophenyl)-2-chlorooxazole (CAS 1060816-28-5)
- 3-Amino-N-cyclopropyl-2-hydroxyheptanamide (CAS 856767-51-6)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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