4,4'-((9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(ethyne-2,1-diyl))dibenzoic acid CAS 1313187-39-1
| CAS No. | 1313187-39-1 |
| Molecular Formula | C47H50O4 |
| Molecular Weight | 678.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-((9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(ethyne-2,1-diyl))dibenzoic acid (CAS 1313187-39-1), molecular formula C47H50O4 and molecular weight 678.90 g/mol, is a CATO reference standard with documented purity and traceability.
4,4'-((9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(ethyne-2,1-diyl))dibenzoic acid (C47H50O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4,4'-((9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(ethyne-2,1-diyl))dibenzoic acid 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 | C47H50O4 |
| Molecular Weight | 678.90 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Dioctyl Standards
- 475101-36-1 Poly[(9,9-dioctyl-2,7-divinylenefluorenylene)-alt-co-(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene)] (CAS 475101-36-1)
- 4,4-Dioctyl-2,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-silolo[3,2-b:4,5-b']dithiophene (CAS 1469798-70-6)
- 5,5-Dioctyl-3,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5H-dibenzo[b,d]silole (CAS 958293-23-7)
- 9,9'-(9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(9H-carbazole) (CAS 848900-30-1)
- 9,9-Dioctyl-N2,N7-diphenyl-N2-(m-tolyl)-N7-(o-tolyl)-9H-fluorene-2,7-diamine (CAS 439942-97-9)
- 4,4'-(9,9-Dioctyl-9H-fluorene-2,7-diyl)dibenzaldehyde (CAS 1223037-70-4)
- 2,2'-(9,9-Dioctyl-9H-fluorene-2,7-diyl)dithiophene (CAS 338469-45-7)
- 1,2-Bis(9,9-dioctyl-9H-fluoren-2-yl)diazene (CAS 1656266-53-3)
Recommended Standards
- N-([1,1'-Biphenyl]-4-yl)-9,9-dimethyl-N-(4-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-fluoren-2-amine (CAS 1242056-42-3)
- 13,19-didesmethyl spirolide C (CAS 908118-02-5)
- N2,N7-Diphenyl-N2,N7-di-m-tolyl-9,9'-spirobi[fluorene]-2,7-diamine (CAS 1033035-83-4)
- Paliperidone Impurity 33 (CAS 1404053-62-8)
- 2,8-Diazaspiro[4.5]decane, 2-(phenylmethyl)- (CAS 867009-61-8)
- N-benzyl-N-methyl-5-nitropyridin-2-amine (CAS 181114-66-9)
- Fmoc-Ile-Aib-Leu-OH (CAS CATO-CPTD788895)
- Tri-p-tolylamine (CAS 1159-53-1)
- 5-Bromo-2-[3-(chloromethyl)phenyl]pyrimidine (CAS 1100598-50-2)
- 3-Aminopicolinic acid hydrochloride (CAS 1588441-17-1)
- N,N-Dimethylquinolin-8-amine (CAS 29526-42-9)
- Methyl 4-{4-[3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}benzenecarboxylate (CAS 321430-12-0)
- 4-(4-Iodophenoxy)-1-propyl-1H-pyrazole (CAS 1713476-99-3)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788692)
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 18665070610 / Nicole.chen@cato-chem.com