4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2-hydroxybenzaldehyde) CAS 791068-98-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 791068-98-9 |
| Molecular Formula | C26H18O6 |
| Molecular Weight | 426.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2-hydroxybenzaldehyde) (CAS 791068-98-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C26H18O6. Molecular weight: 426.42 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C26H18O6 |
| Molecular Weight | 426.42 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Dimethoxy Standards
- 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzoic acid (CAS 1190438-53-9)
- N-(4,5-Dimethoxy-2-(2-phenylacetyl)phenyl)-4-methylbenzenesulfonamide (CAS 886493-72-7)
- 2,4-Dimethoxy-1,3,5-triazine (CAS 1898-72-2)
- 2-((3-Benzyl-8,9-dimethoxy-2-oxo-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl)thio)acetamide (CAS 1024708-47-1)
- 6-(9,10-Dimethoxy-5,11-dioxo-6a,11-dihydroisoindolo[2,1-a]quinazolin-6(5H)-yl)hexanoic acid (CAS 1630763-97-1)
- 6,7-Dimethoxy-2-(4-morpholino-5,6-dihydropyrido[3,4-d]pyrimidin-7(8H)-yl)quinazolin-4(3H)-one (CAS 441064-73-9)
- 1775384-87-6 2,4-Dimethoxy-N-{1-[2-methyl-6-(trifluoromethyl)pyrimidin-4-yl]piperidin-4-yl}benzamide MFCD28805951 (CAS 1775384-87-6)
- 4,5-Dimethoxy-2-(1-(2-methoxy-5-methylphenyl)-5-oxopyrrolidine-3-carboxamido)benzoic acid (CAS 1900999-60-1)
Recommended Standards
- 4-(3-(4-Nitrophenyl)-2-phenylacrylamido)benzene-1-sulfonyl fluoride (CAS 21316-11-0)
- Methyl 4-(4-((4-acetylphenyl)carbamoyl)piperazin-1-yl)-3-nitrobenzoate (CAS 692732-85-7)
- 4-(3-(3-Nitrophenyl)-2-phenylacrylamido)benzene-1-sulfonyl fluoride (CAS 21970-46-7)
- 2-[(tert-Butoxycarbonyl)amino][1,1-biphenyl]-4-carboxylic acid (CAS 927801-45-4)
- tert-Butyl 3-(((4-methylpyridin-2-yl)thio)methyl)pyrrolidine-1-carboxylate (CAS 1353963-43-5)
- Methyl 3-formyl-6-methoxy-1H-indole-2-carboxylate (CAS 379260-71-6)
- 4-(2-Chloro-3-methylphenyl)piperidine (CAS 1044769-09-6)
- 1-(4-Methoxybenzyl)-3-methylpiperazine hydrochloride (CAS 1353946-24-3)
- 5-(Piperidin-2-yl)-3-(2,2,2-trifluoroethyl)-1,2,4-oxadiazole hydrochloride (CAS 1393330-65-8)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com