Quick view Compare Add to Cart The item has been added I3807-1G Sigma-Aldrich trans-3-Indoleacrylic acid (C15-1228-757) MSRP: Price: $153.00 List Price: $170.00 Application Metabolite of tryptophan. Hide Expand SKUI3807-1G MFR. NameSigma-Aldrich Catalog No. C15-1228-757 Pack Size 1 GR Price: MSRP: Price: $153.00 List Price: $170.00 Quantity: Decrease Quantity of undefined Increase Quantity of undefined Add to Cart The item has been added Close × Product Information Catalog No. C15-1228-757 Description Application Metabolite of tryptophan.