(3aR,7aR)-hexahydro-2-benzofuran-1,3-dione

(3aR,7aR)-hexahydro-2-benzofuran-1,3-dione - Names and Identifiers

Name	Cyclohexanedicarboxylicanhydride
Synonyms	Cyclohexanedicarboxylicanhydride (3aR,7aR)-hexahydro-1,3-Isobenzofurandione (3aR,7aR)-Hexahydroisobenzofuran-1,3-dione (3aR,7aR)-hexahydro-2-benzofuran-1,3-dione (R,R)-1,2-Cyclohexanedicarboxylic anhydride 1,3-Isobenzofurandione, hexahydro-, (3aR,7aR)- (+)-trans-1,2-Cyclohexanedicarboxylic anhydride (+)-trans-1,2-Cyclohexanedicarboxylic Anhydride (+)-TRANS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE (+)-Trans-1,2-Cyclohexanedicarboxylic Anhydride
CAS	71749-03-6

(3aR,7aR)-hexahydro-2-benzofuran-1,3-dione - Physico-chemical Properties

Molecular Formula	C8H10O3
Molar Mass	154.16
Density	1.235±0.06 g/cm3(Predicted)
Melting Point	165 °C
Boling Point	283.4±0.0 °C(Predicted)
Solubility	soluble in Dioxane
Appearance	powder to crystal
Color	White to Light yellow
Storage Condition	Inert atmosphere,Room Temperature
Refractive Index	85 ° (C=1, Dioxane)
MDL	MFCD00674194

(3aR,7aR)-hexahydro-2-benzofuran-1,3-dione - Risk and Safety

Hazard Symbols	Xn - Harmful
Risk Codes	R41 - Risk of serious damage to eyes R42/43 - May cause sensitization by inhalation and skin contact.
Safety Description	S23 - Do not breathe vapour. S24 - Avoid contact with skin. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection

(3aR,7aR)-hexahydro-2-benzofuran-1,3-dione - Introduction

Cyclohexanedicarboxylicanhydride(Cyclohexanedicarboxylic anhydride) is an organic compound with the chemical formula C8H10O3.

Cyclohexanedicarboxylic anhydride is a colorless crystal or white powder with a fragrant smell. It is unstable at room temperature and easily hydrolyzed in air. It can be dissolved in organic solvents such as ethanol and acetate.

Cyclohexanedicarboxylicanhydride have a variety of applications in chemistry and industry. As an important organic synthesis intermediate, it is widely used in the synthesis of polyimide, polyester and other polymer compounds. It can also be used as a raw material for dyes, paints and plastics.

The method for preparing Cyclohexanedicarboxylicanhydride mainly includes a two-step reaction. First, cyclohexanedioic acid is dissolved in anhydrous primary alcohol and reacted with an acid catalyst to obtain cyclohexanedioic anhydride. The racemization of the product is then decomposed into two isomers by absorptiometry or chromatography to give the desired Cyclohexanedicarboxylicanhydride.

Regarding safety, Cyclohexanedicarboxylicanhydride is an organic substance and has certain risks. It may cause irritation and damage to the skin, eyes and respiratory system. During use and operation, you should follow safe operating procedures, avoid contact with skin and eyes, and ensure that you operate in a well-ventilated environment. When stored, it should be kept in a sealed container, away from fire and oxidizing agents. In the event of an accident, appropriate first aid measures should be taken immediately and medical assistance should be sought.

Last Update：2024-04-10 22:29:15