1,1'-BINAPHTHYL
- CAS NO.：604-53-5
- Empirical Formula: C20H14
- Molecular Weight: 254.33
- MDL number: MFCD00041740
- EINECS: 210-070-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-08-13 14:25:36
What is 1,1'-BINAPHTHYL?
Chemical properties
Brown powder
Purification Methods
Purify 1,1’-binaphthyl through a silica gel column with Me2CO/*C6H6 [or Al2O3 with 10% *C6H6/pet ether (b 30-60o)] and recrystallise it from EtOH, pentane, or slow evaporation of *C6H6, Me2CO or Et2O solutions. Half life ~10hours at 25o in various solvents. [Wilson & Pincock J Am Chem Soc 97 1474 1975, Akimoto & Yamada Tetrahedron 27 5999 1971, Beilstein 5 I 358, 5 II 642, 5 III 2465, 5 IV 2634.]
Properties of 1,1'-BINAPHTHYL
| Melting point: | 143-146 °C |
| Boiling point: | 360 °C |
| Density | 1,3 g/cm3 |
| refractive index | 1.6292 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | very faint turbidity in Toluene |
| form | Powder |
| color | Brown |
| CAS DataBase Reference | 604-53-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1,1'-Binaphthalene (604-53-5) |
Safety information for 1,1'-BINAPHTHYL
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation H413:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1,1'-BINAPHTHYL
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