1,4-di(benzo[b]thiophen-4-yl)piperazine

1,4-双(苯并[b]噻吩-4-基)哌嗪

Also known as: 1,4-bis(benzo[b]thiophen-4-yl)piperazine, Brexpiprazole Impurity 3, Brexpiprazole Impurity 18, Brexpiprazole Impurity 2, Brexpiprazole Impurity 9, Brexpiprazole Impurity T, Brexpiprazole Impurity D, 1,4-bis(benzo[b]thien-4-yl)piperazine

1,4-di(benzo[b]thiophen-4-yl)piperazine (CAS 1420987-86-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C20H18N2S2 and a molecular weight of 350.500 g/mol. It is also known as 1,4-bis(benzo[b]thiophen-4-yl)piperazine, Brexpiprazole Impurity 3 and Brexpiprazole Impurity 18. Key properties include a boiling point of 563.5±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 294.6±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1420987-86-5

Jingsj CID

J-1528875-6

Molecular Formula

C₂₀H₁₈N₂S₂

Chinese Name

1,4-双(苯并[b]噻吩-4-基)哌嗪

Molecular Weight

350.500 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026