5,5'-(1,4-Phenylenebis(ethyne-2,1-diyl))diisophthalaldehyde CAS 2380275-60-3
| CAS No. | 2380275-60-3 |
| Molecular Formula | C26H14O4 |
| Molecular Weight | 390.39 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.
5,5'-(1,4-Phenylenebis(ethyne-2,1-diyl))diisophthalaldehyde (CAS 2380275-60-3), molecular formula C26H14O4 and molecular weight 390.39 g/mol, is a CATO reference standard with documented purity and traceability.
5,5'-(1,4-Phenylenebis(ethyne-2,1-diyl))diisophthalaldehyde (C26H14O4) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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).
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 | C26H14O4 |
| Molecular Weight | 390.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
Related Phenylenebis Standards
- 2,2'-(1,4-Phenylenebis(methylene))bis(isoindoline-1,3-dione) (CAS 30391-55-0)
- 1,4-Phenylenebis(methylene) bis(diethylcarbamodithioate) (CAS 89964-93-2)
- 5,5'-(1,4-Phenylenebis(oxy))bis(isobenzofuran-1,3-dione) (CAS 17828-53-4)
- 4,4′-{[1,4-phenylenebis(methylene)]bis(oxy)}dibenzoic acid (CAS 47593-50-0)
- 6,6'-(1,4-Phenylenebis(propane-2,2-diyl))bis(2,4-dimethylphenol) (CAS 34074-95-8)
- 2,2'-((1,2-Phenylenebis(azanediyl))bis(carbonyl))dibenzoic acid (CAS 66532-88-5)
- 2,2'-((1,3-Phenylenebis(azanediyl))bis(carbonyl))dibenzoic acid (CAS 852636-98-7)
- 2,2'-((1,4-Phenylenebis(azanediyl))bis(carbonyl))dibenzoic acid (CAS 7084-12-0)
Recommended Standards
- 5-(4-Aminophenoxy)-2-(3,4-dimethoxyphenyl)isoindoline-1,3-dione (CAS 310451-93-5)
- 5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-carboxylic acid (CAS 2091858-74-9)
- 4-((2-(Pyrazine-2-carbonyl)hydrazono)methyl)phenyl 4-ethoxybenzoate (CAS 767339-10-6)
- Ethyl 3-[(4-nitrophenyl)methoxy]pyrido[1,2-a]indole-10-carboxylate (CAS 339020-39-2)
- 2-(2,4-Dimethylphenyl)imidazo[1,2-a]pyridine-3-carbaldehyde (CAS 881040-31-9)
- 1-(2-Methyl-1H-imidazol-5-yl)ethan-1-amine (CAS 944904-04-5)
- 2-Cyano-4-cyclopropoxy-N,N-dimethylnicotinamide (CAS 1243472-57-2)
- 1-Pyridin-3-yl-piperazine (CAS 67980-77-2)
- 2-[4-(Trifluoromethyl)phenoxy]acetohydrazide (CAS 860649-71-4)
- 4-Amino-2-ethynylphenol (CAS 1391053-48-7)
- 2-((2S,5S)-5-Methyl-3,6-Dioxopiperazin-2-yl)acetic acid (CAS 110954-19-3)
- 3-(2-Isopropyl-imidazol-1-yl)-propylaminedihydrobromide (CAS 1050556-43-8)
- Tamsulosin Impurity 40 (CAS 80223-79-6)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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