Diphenylsulfonetetracarboxylicdianhydride

Diphenylsulfonetetracarboxylicdianhydride - Names and Identifiers

Name	Diphenylsulfonetetracarboxylicdianhydride
Synonyms	DSDA 5,5'-sulfonylbis(2-benzofuran-1,3-dione) Diphenylsulfonetetracarboxylicdianhydride 3,3,4,4-Diphenylsulfonetetracarboxylic dianhydride
CAS	2540-99-0
InChI	InChI=1/C16H6O8S/c17-13-9-3-1-7(5-11(9)15(19)23-13)25(21,22)8-2-4-10-12(6-8)16(20)24-14(10)18/h1-6H

Diphenylsulfonetetracarboxylicdianhydride - Physico-chemical Properties

Molecular Formula	C16H6O8S
Molar Mass	358.28
Density	1.755g/cm³
Melting Point	283℃
Boling Point	718.5°C at 760 mmHg
Flash Point	388.4°C
Vapor Presure	1.69E-20mmHg at 25°C
Storage Condition	Room Temprature
Refractive Index	1.697
MDL	MFCD00039145

Diphenylsulfonetetracarboxylicdianhydride - Introduction

It is an organic compound with the chemical formula C20H10O6S. It is a white crystalline powder, stable at room temperature. The following are some of its properties, uses, methods and safety information:

Nature:
-Appearance: White crystalline powder
-Molecular weight: 370.36g/mol
-Melting Point: about 250-255 ℃
-Solubility: Slightly soluble in water, soluble in organic solvents such as dimethyl sulfoxide and dimethylformamide

Use:
-Ti can be used as an intermediate in the synthesis of catalysts, coatings and resins.
-It can react with compounds containing active hydrogen to prepare polymers or polymer precursors with different functions.
-Due to its carboxylic acid functional group, it can also be used to prepare fluorescent dyes, coatings, lubricants, etc.

Method:
-A commonly used synthesis method is to synthesize by anhydridization of p-diphenyl sulfone and excess phthalic anhydride under appropriate reaction conditions.
-In a suitable solvent, diphenyl sulfone and phthalic anhydride are heated to the reaction temperature, and it is usually necessary to add an acid catalyst or a base catalyst to promote the reaction.
-After the reaction is completed, the product is obtained through the steps of crystallization, filtration, and drying.

Safety Information:
-It has low toxicity, but it is still necessary to pay attention to the safety during operation.
-When using, avoid inhaling dust or contact with skin and eyes, and avoid swallowing.
-Wear appropriate personal protective equipment such as lab gloves, glasses, and protective clothing during operation.
-If skin or eye contact occurs, rinse immediately with plenty of water for at least 15 minutes and seek medical help.
-If taken by mistake, consult a doctor immediately and take out the packaging or label for your doctor to see.

Last Update：2024-04-10 22:29:15