3,4-Diaminothiophene dihydrochloride

3,4-二氨基噻吩二盐酸盐

Also known as: 3,4-Diaminothiophene dihydrochloride, 3,4-Thiophenediamine dihydrochloride, 3,4-Thiophenediamine, hydrochloride (1:2), MFCD00671511, Thiophene-3,4-diamine dihydrochloride, 3,4-thiophendiamine dihydrochloride

3,4-Diaminothiophene dihydrochloride (CAS 90069-81-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H8Cl2N2S and a molecular weight of 187.091 g/mol. It is also known as 3,4-Thiophenediamine dihydrochloride, 3,4-Thiophenediamine, hydrochloride (1:2) and MFCD00671511. Key properties include a melting point of >150°C and a boiling point of 385.5ºC at 760 mmHg. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
90069-81-1
Jingsj CID
J-19285-5
Molecular Formula
C4H8Cl2N2S
Chinese Name
3,4-二氨基噻吩二盐酸盐
Molecular Weight
187.091 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point>150°C
Boiling Point385.5ºC at 760 mmHg

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 3,4-Diaminothiophene dihydrochloride?

The CAS number of 3,4-Diaminothiophene dihydrochloride is 90069-81-1.

What are the molecular formula and molecular weight of 3,4-Diaminothiophene dihydrochloride?

3,4-Diaminothiophene dihydrochloride has molecular formula C4H8Cl2N2S and molecular weight 187.091 g/mol.

Is 3,4-Diaminothiophene dihydrochloride hazardous?

3,4-Diaminothiophene dihydrochloride has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,4-Diaminothiophene dihydrochloride (CAS 90069-81-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19285-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.