What is fumaric acid? Tell you the advantages and applications

[alias]fumaric acid, fumaric acid, violaceous acid. ［molecular formula］c4h4o4 ［structural formula］hoocch [properties]exist naturally in corydalis, mushrooms and fresh beef. it is a colorless needle-shaped or leaf-shaped crystal of the clinic system. it is odorless and has a sour fruity taste. the relative density is 1.635 (20℃), the melting point is 286-287℃, it sublimates when heated to…