2',5'-Dipropoxy-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid CAS 1459128-80-3
| CAS No. | 1459128-80-3 |
| Molecular Formula | C28H26O10 |
| Molecular Weight | 522.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2',5'-Dipropoxy-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 1459128-80-3), a certified reference material (molecular formula C28H26O10, MW 522.50 g/mol) for analytical method development and quality control.
2',5'-Dipropoxy-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (C28H26O10) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H26O10 |
| Molecular Weight | 522.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
Related Dipropoxy Standards
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Recommended Standards
- PEG5-bis-(Ethyl phosphonate) (CAS 1446282-28-5)
- (E)-N'-(1-(2-(Cyclohexylmethoxy)-5-methylphenyl)-2,2,2-trifluoroethylidene)-2-(trifluoromethyl)benzenesulfonohydrazide (CAS 2738683-38-8)
- Elobixibat Impurity 37 (CAS CATO-C4X-283837)
- 5,5'-(9,9-Dimethyl-9H-fluorene-2,7-diyl)diisophthalicacid (CAS 2624370-17-6)
- tert-Butyl (5-iodopyrazin-2-yl)carbamate (CAS 1816293-92-1)
- 2-(2-Methoxy-4-methylphenoxy)quinoline-4-carboxylic acid (CAS 1255147-72-8)
- 4,5-Dichlorothiazole (CAS 16629-16-6)
- (E)-4-(4-Nitrostyryl)-N,N-diphenylaniline (CAS 736158-08-0)
- 4-Methylnonane (CAS 17301-94-9)
- Bis Benzothiazoline (CAS 19668-94-1)
- 4-ethynyl-2,6-difluoro-aniline (CAS 753501-37-0)
- Floxuridine Impurity 4 (CAS 69123-97-3)
- 2-Methyl-4,5,6,7-tetrahydro-2H-pyrazolo[3,4-b]pyridin-3-ol (CAS 1708250-65-0)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
Why CATO?
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