2',3',5',6'-Tetramethyl-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde CAS 850559-54-5
| CAS No. | 850559-54-5 |
| Molecular Formula | C24H22O2 |
| Molecular Weight | 342.43 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.
2',3',5',6'-Tetramethyl-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 850559-54-5) is a high-purity analytical reference standard with the molecular formula C24H22O2 and a molecular weight of 342.43 g/mol.
The molecular framework of 2',3',5',6'-Tetramethyl-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (C24H22O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2',3',5',6'-Tetramethyl-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H22O2 |
| Molecular Weight | 342.43 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 | May oxidize slowly on prolonged air exposure; 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.) | 1987 |
Related Tetramethyl Standards
- 1,4-Bis(2,3,4,5-tetramethyl-1H-phosphol-1-yl)butane (CAS 125706-15-2)
- 3-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-ylmethyl]-benzoic acid methyl ester (CAS 1404431-51-1)
- 4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-ylmethyl]-benzoic acid methyl ester (CAS 2410596-00-6)
- Benzyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylate (CAS 1643573-74-3)
- Benzyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (CAS 286961-15-7)
- Benzyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydropyridine-1(2H)-carboxylate (CAS 2865813-35-8)
- Benzyl 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydropyridine-1(2H)-carboxylate (CAS 731852-88-3)
- 4,4,5,5-Tetramethyl-2-(2-(4-nitrophenoxy)phenyl)-1,3,2-dioxaborolane (CAS 870221-30-0)
Recommended Standards
- 2,3',4,4',5-Pentachlorodiphenyl ether (CAS 60123-65-1)
- 2,3-Dinor Thromboxane B2 (CAS 63250-09-9)
- 1-Ethyl-4-methylquinolin-2(1H)-one (CAS 53761-55-0)
- 2,7,7-Trimethyl-4-(naphthalen-1-yl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carbonitrile (CAS 453583-97-6)
- N-benzyl-1-(2,3-dimethoxyphenyl)methanamine (CAS 128349-14-4)
- 3-(4-methoxyphenyl)pentanoic acid (CAS 30211-63-3)
- N-(3,5-Dichlorophenyl)-N-[(dimethylamino)methylene]thiourea (CAS 477852-00-9)
- 78252-12-7 5-Amino-2-(morpholin-4-yl)benzonitrile DTXSID40509784 (CAS 78252-12-7)
- 3-(6-Bromopyridin-3-yl)propan-1-ol (CAS 656827-76-8)
- (4-Bromo-3-methylphenyl)propylamine (CAS 1019487-84-3)
- 1,4-Dichlorobut-3-en-2-one (CAS 15787-79-8)
- N'-((1-Methyl-1H-pyrrol-2-yl)methylene)propionohydrazide (CAS 113905-43-4)
- 4-[(2,5-dichlorophenyl)methyl]piperidine hydrochloride (CAS 1375474-64-8)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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