Furfuryl mercaptan's cas code is 98-02-2.
4-Methyl-5-thiazolylethyl acetate's cas code is 656-53-1
4-Methylthio-4-methyl-2-pentanone's cas code is 23550-40-5.
4-Mercapto-4-methylpentan-2-one's cas code is 19872-52-7.
5-(2-Hydroxyethyl)-4-methylthiazole（Meaty）'s cas code is 137-00-8.
5-(2-Hydroxyethyl)-4-methylthiazole（bean）'s cas code is 137-00-8
