trans-1,2-Cyclopentanediol
- CAS NO.：5057-99-8
- Empirical Formula: C5H10O2
- Molecular Weight: 102.13
- MDL number: MFCD00082582
- EINECS: 225-757-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 22:40:08
What is trans-1,2-Cyclopentanediol?
Chemical properties
off-white crystalline powder
The Uses of trans-1,2-Cyclopentanediol
(1R,2R)-rel-trans-1,2-Cyclopentanediol is a building block for the synthesis of chiral phosphine ligands. It can also be used to prepare benzoquinolines and benzoindoles via heterocyclization of naphthylamines with diols catalyzed by iridium chloride/BINAP.
Properties of trans-1,2-Cyclopentanediol
| Melting point: | 54-56 °C(lit.) |
| Boiling point: | 136 °C21.5 mm Hg(lit.) |
| Density | 1.235 |
| refractive index | 1. |
| Flash point: | >230 °F |
| storage temp. | 2-8°C |
| pka | 14.48±0.40(Predicted) |
| color | Light yellow |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 5057-99-8 |
Safety information for trans-1,2-Cyclopentanediol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| 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 trans-1,2-Cyclopentanediol
| InChIKey | VCVOSERVUCJNPR-RFZPGFLSSA-N |
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