90069-81-1

90069-81-1 - Names and Identifiers

Name	3,4-Diaminothiophene dihydrochloride
Synonyms	3,4-Thiophendiamine dihydrochloride 3,4-THIOPHENDIAMINE DIHYDROCHLORIDE thiophene-3,4-diamine hydrochloride 3,4-ThiophenediaMine Dihydrochloride 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE 3,4-Diaminothiophene dihydrochloride
CAS	90069-81-1
InChIKey	RAMOMCXNLLLICQ-UHFFFAOYSA-N

90069-81-1 - Physico-chemical Properties

Molecular Formula	C4H8Cl2N2S
Molar Mass	187.09
Melting Point	>150°C
Appearance	Crystalline Powder
Color	Gray or brown
Storage Condition	Keep in dark place,Inert atmosphere,2-8°C
MDL	MFCD00671511

90069-81-1 - Risk and Safety

Risk Codes	R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R39 - Danger of very serious irreversible effects R43 - May cause sensitization by skin contact R41 - Risk of serious damage to eyes R25 - Toxic if swallowed
Safety Description	S24/25 - Avoid contact with skin and eyes. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S37 - Wear suitable gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDs	UN 2811 6.1 / PGIII
WGK Germany	3
HS Code	29349990

90069-81-1 - Introduction

3,4-Diaminothiophene dihydrochloride is an organic compound with the chemical formula C4H8N2S · 2HCl. It is a colorless crystalline solid, soluble in water and some organic solvents at room temperature.

3,4-Diaminothiophene dihydrochloride has a wide range of applications in organic synthesis. It can be used as an intermediate in organic synthesis and plays an important role in the preparation of drugs, dyes and polymer materials. In addition, it can also be used in the preparation of electrochemical materials and optoelectronic devices, such as organic light-emitting diodes (OLEDs) and solar cells.

The method for preparing 3,4-Diaminothiophene dihydrochloride is usually to first react with mercaptopropionaldehyde and ethylenediamine under alkaline conditions to form thiophenone, and then reduce it to 3,4-Diaminothiophene. Finally, 3,4-Diaminothiophene dihydrochloride was prepared by reaction with hydrogen chloride.

Some safety precautions should be taken when handling 3,4-Diaminothiophene dihydrochloride. It may cause irritation and damage to the eyes, skin and respiratory system, so wear appropriate personal protective equipment during operation. At the same time, during storage and use, care should be taken to avoid contact with strong oxidants or strong acids to avoid dangerous reactions. In case of accidental contact or inhalation, rinse immediately with water and seek medical help. When in use, should be strictly in accordance with the relevant chemical safety procedures for operation.

Last Update：2024-04-09 21:11:58