Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-

Synonym(s):2-Chloromethyl EDOT;2-Chloromethyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine

CAS NO.：857419-46-6
Empirical Formula: C7H7ClO2S
Molecular Weight: 190.65
MDL number: MFCD17014651
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 02:37:37

Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro- Structural

What is Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-?

The Uses of Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-

2-Chloromethyl EDOT is a key building block for the incorporation of EDOT (3,4-ethylenedioxythio-phene) into copolymers.

General Description

2-Chloromethyl-2,3-dihydrothieno[3,4-b]-1,4-dioxine (EDOT-Cl) can be prepared by reacting 3,4-dimethoxythiophene with 3-chloro-1,2-propanediol via transesterification. The six-memebered ring of the molecule exhibits twisted conformation. It acts as an intermediate during the multi-step synthesis of poly(sulfobetaine-3,4-ethylenedioxythiophene) (PSBEDOT), a conjugated polymer.

Properties of Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-

Melting point:	39-44°C
Boiling point:	280.5±28.0 °C(Predicted)
Density	1.359±0.06 g/cm3(Predicted)
form	solid

Safety information for Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral

Computed Descriptors for Thieno[3,4-b]-1,4-dioxin, 2-(chloromethyl)-2,3-dihydro-

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