4-ANPP--13-C-6-

4-ANPP-13C6 (Item No. 25559) is an analytical reference material intended for use as an internal standard for the quantification of 4-ANPP (Item Nos. 22700 | 18810) by GC- or LC-MS. 4-ANPP is categorized as a piperidinamine. It is an intermediate in the synthesis of fentanyl (Item Nos. ISO60197 | 14719 | 22659) from N-phenethyl-4-piperidone (NPP; Item No. 20528). As such, 4-ANPP has been used as a precursor for the manufacture of fentanyl and related opioids. 4-ANPP is also an impurity found in fentanyl preparations. It is a known metabolite of acetyl fentanyl (Item Nos. ISO60128 | ISO00128),...