2,2'-(9,9-Diphenyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) CAS 474918-36-0
| CAS No. | 474918-36-0 |
| Molecular Formula | C37H40B2O4 |
| Molecular Weight | 570.33 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.
2,2'-(9,9-Diphenyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 474918-36-0), molecular formula C37H40B2O4 and molecular weight 570.33 g/mol, is a CATO reference standard with documented purity and traceability.
2,2'-(9,9-Diphenyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (C37H40B2O4) 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.
Physical & Chemical Properties
| Molecular Formula | C37H40B2O4 |
| Molecular Weight | 570.33 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 2025 |
Related Diphenyl Standards
- 2,4-Diphenyl-6-(3-(triphenylsilyl)phenyl)-1,3,5-triazine (CAS 2254737-32-9)
- (1R)-3,3'-Diphenyl-[1,1'-binaphthalene]-2,2'-disulfonic acid (CAS 1242512-43-1)
- 3,3'-Diphenyl-[1,1'-binaphthalene]-2,2'-disulfonic acid (CAS 1461736-02-6)
- diphenyl [(2-chlorophenyl)({[3-(trifluoromethyl)anilino]carbothioyl}amino)methyl]phosphonate (CAS 680214-49-7)
- 11-(4,6-Diphenyl-1,3,5-triazin-2-yl)-12-phenyl-11,12-dihydroindolo[2,3-a]carbazole (CAS 1024598-01-3)
- 5-(4,6-Diphenyl-1,3,5-triazin-2-yl)-11-phenyl-5,11-dihydroindolo[3,2-b]carbazole (CAS 1643469-93-5)
- 2,4-Diphenyl-6-(4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)phenyl)-1,3,5-triazine (CAS 2088209-43-0)
- 2-((5,6-Diphenyl-1,2,4-triazin-3-yl)thio)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide (CAS 442651-77-6)
Recommended Standards
- 2,2'-(9,9-Dihexyl-9H-fluorene-2,7-diyl)bis(benzo[d][1,3,2]dioxaborole) (CAS 856570-41-7)
- Carboxymethyldimethyl-3-[[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulphonyl]amino]propylammonium Hydroxide (CAS 34455-29-3)
- N1,N4-Bis(4-bromophenyl)-N1,N4-diphenyl-1,4-benzenediamine (CAS 525602-17-9)
- N,N-(Dithiodi-2,1-ethanediyl)bis[2,5-dichloro-benzenesulfonamide (CAS 927822-86-4)
- 1261938-14-0 4'-Acetyl-6-fluoro[1,1'-biphenyl]-3-carboxylic acid DTXSID40689772 (CAS 1261938-14-0)
- 3-Methoxy-5-methylbenzoic Acid (CAS 62089-34-3)
- (1S,3R)-3-Methylcyclohexane-1-carboxylic acid (CAS 1821742-33-9)
- (S)-2-(4-benzylmorpholin-2-yl)acetic acid (CAS 2060370-70-7)
- (S)-2-(2-(2-(2-Aminopropanamido)acetamido)acetamido)acetic acid (CAS 5123-42-2)
- 1-Acetyl-4-hydroxy-2,5-dihydro-1H-pyrrole-3-carbonitrile (CAS 18721-38-5)
- 993-52-2 Digermane, hexamethyl- Hexamethyldigermane NSC-294221 NSC294221 (CAS 993-52-2)
- (1-(Piperazin-1-ylmethyl)cyclopropyl)methanol (CAS 1502581-72-7)
- 3-Methylbut-2-enylzinc chloride, 0.50 M in THF (CAS 90472-65-4)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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