(E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile

Also known as: (E)-2-(aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile, RMA-54, TAK438 Impurity 189, Vonoprazan Impurity 189, Vonoprazan-053-E

(E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile (CAS 2304978-57-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C11H9FN2O and a molecular weight of 204.20 g/mol. It is also known as (E)-2-(aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile, RMA-54 and TAK438 Impurity 189. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2304978-57-0
Jingsj CID: J-84841-5
Molecular Formula: C₁₁H₉FN₂O
Molecular Weight: 204.20 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of (E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile?

The CAS number of (E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile is 2304978-57-0.

What are the molecular formula and molecular weight of (E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile?

(E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile has molecular formula C11H9FN2O and molecular weight 204.20 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(E)-2-(Aminomethylene)-4-(2-fluorophenyl)-4-oxobutanenitrile (CAS 2304978-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-84841-5 (accessed 2026-10-23).

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