Sinigrin monohydrate, synthetic Description A β-D-thioglucopyranoside occurring in black mustard seeds and horseradish root. Substrate for thioglucosidase. Specifications Cas No. 3952-98-5 Product ID S3453 Product Name Sinigrin monohydrate, synthetic Formula C10H17KNO9S2 H2O Formula Wt. 415.49 Purity >98.0%