2-Butenoic acid, 3-ethoxy-, ethyl ester, also known by its CAS number 998-91-4, is an organic compound that belongs to the class of esters. It is characterized by its structure, which includes a butenoic acid backbone with an ethoxy group and an ethyl ester functional group. This compound typically appears as a colorless to pale yellow liquid with a fruity odor, making it potentially useful in flavoring and fragrance applications. It is soluble in organic solvents and exhibits moderate solubility in water. The presence of both the ethoxy and ethyl groups contributes to its reactivity, allowing it to participate in various chemical reactions, such as esterification and transesterification. Additionally, 2-butenoic acid derivatives can be involved in polymerization processes, making them relevant in materials science. Safety data indicates that, like many organic esters, it should be handled with care, as it may cause irritation to the skin and eyes. Proper storage and handling protocols are essential to ensure safety and stability.

2-Butenoic acid, 3-ethoxy-, ethyl ester

998-91-4: 2-Butenoic acid, 3-ethoxy-, ethyl ester, 3-Ethoxy-2-butenoic acid ethyl ester, 3-Ethoxy-2-butenoic acid ethyl ester~Ethyl 3-ethoxycrotonate, 3-Ethoxycrotonic acid ethyl ester, Crotonic acid, 3-ethoxy-, ethyl ester, Ethyl 3-Ethoxybut-2-Enoate, Ethyl 3-ethoxycrotonate, Ethyl β-ethoxycrotonate, NSC 224119, NSC 2321, Ethyl 3-ethoxy-2-butenoate

Ethyl 3-ethoxycrotonate is an organic compound with the molecular formula C5H11O2. It is a colorless liquid that boils at 46°C. The molecule has a pyridine ring and an ethoxy group on the third carbon. This product can be used in enantioselective syntheses, yielding optically pure products. It also has structural analogues that are aliphatic and ketonic.

CAS 998-91-4: 2-Butenoic acid, 3-ethoxy-, ethyl ester

Ethyl 3-ethoxycrotonate

Ref: 3D-AAA99891

ETHYL 3-ETHOXYBUT-2-ENOATE

Ref: IN-DA003Q7N

Ethyl 3-Ethoxybut-2-enoate

Ref: 10-F958770

Ethyl 3-ethoxycrotonate

Ref: 54-OR23954