(±)-反-1,2-环戊二醇(±)

(±)-反-1,2-环戊二醇(±) - Names and Identifiers

Name	trans-1,2-cyclopentanediol
Synonyms	AI3-26281 1,2-Cyclopentanediol cyclopentane-1,2-diol Cyclopentane-1,2-diol trans-Cyclopentanediol-1,2 TRANS-1,2-CYCLOPENTANEDIOL trans-1,2-cyclopentanediol trans-Cyclopentane-1,2-diol trans-cyclopentane-1,2-diol rel-(1R,2R)-1,2-Cyclopentanediol rel-(1S,2S)-Cyclopentane-1,2-diol
CAS	5057-99-8
EINECS	225-757-6
InChI	InChI=1/C5H10O2/c6-4-2-1-3-5(4)7/h4-7H,1-3H2
InChIKey	VCVOSERVUCJNPR-RFZPGFLSSA-N

(±)-反-1,2-环戊二醇(±) - Physico-chemical Properties

Molecular Formula	C5H10O2
Molar Mass	102.13
Density	1.235
Melting Point	54-56°C(lit.)
Boling Point	136°C21.5mm Hg(lit.)
Flash Point	>230°F
Vapor Presure	0.0304mmHg at 25°C
pKa	14.48±0.40(Predicted)
Storage Condition	2-8°C
Stability	Stable. Combustible. Incompatible with strong oxidizing agents.
Refractive Index	1.

(±)-反-1,2-环戊二醇(±) - Risk and Safety

Safety Description	S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes.
WGK Germany	3
FLUKA BRAND F CODES	3-4.3-10

(±)-反-1,2-环戊二醇(±) - Introduction

trans-1,2-cyclopentanediol is an organic compound with the chemical formula C5H10O2. Its structure has two hydroxide groups attached to a five-membered ring, with the two hydroxyl (OH) groups in opposite positions. The following is a detailed description of the nature, use, preparation and safety information of trans-1,2-cyclopentanediol:

Nature:
- trans-1,2-cyclopentanediol is a colorless to pale yellow liquid with a sweet taste.
-It has high solubility and can be dissolved in water and many organic solvents.
- trans-1,2-cyclopentanediol is an unstable compound that will gradually decompose in the air.

Use:
- trans-1,2-cyclopentanediol can be used as an intermediate in organic synthesis.
-It can be used to prepare a variety of organic compounds, such as polyesters and polyethers.
- trans-1,2-cyclopentanediol is also used as a surfactant, lubricant and component of polymer materials.

Preparation Method:
- trans-1,2-cyclopentanediol can be obtained by the gas phase catalytic hydrogenation of cyclopentanedione and hydrogen.
-This reaction is usually carried out in the presence of a suitable catalyst, such as a platinum, palladium or rhodium catalyst.

Safety Information:
- trans-1,2-cyclopentanediol is not significantly toxic at low concentrations, but high concentrations or long-term exposure may cause health hazards.
-Use appropriate protective measures, such as gloves and protective glasses, to avoid contact with skin and eyes.
-When storing, the trans-1,2-cyclopentanediol should be stored in a sealed container, away from high temperature and fire sources.

Last Update：2024-04-10 22:29:15