"Fentanyl containing substance" means one (1) or more of the following substances, including their isomers, esters, ethers, salts, and salts of isomers, esters, and ethers:
(1) 4-fluoroisobutyryl fentanyl.(2) Acetyl fentanyl (Other names include: N-(1-phenethylpiperidin-4-yl)- N- phenylacetamide).(3) Cyclopentyl fentanyl. Other name: N-(1-phenethylpiperidin- 4-yl)-N- phenylcyclopentanecarboxamide.(4) Fentanyl related substances.(6) Isobutyryl fentanyl. Other name: N-(1-phenethylpiperidin- 4-yl)-N- phenylisobutyramide.(7) Methoxyacetyl fentanyl. Other name: 2-methoxy-N-(1-phenethylpiperidin-4-yl)-N-phenylacetamide.(8) 3-Methylfentanyl [N-[3-methyl-1-(2-phenylethyl)-4- piperidyl] - N-phenyl-propanimide] (9813).(9) 3-Methylthiofentanyl (N-[(3-methyl-1-(2-thienyl)ethyl-4- piperidinyl]-N-phenylpropanamide) (9833).(10) N-(4-chlorophenyl)- N-(1-phenethylpiperidin-4-yl) isobutyramide (para-chloroisobutyryl fentanyl).(11) N-(2-fluorophenyl)-2-methoxy- N-(1-phenethylpiperidin-4-yl) acetamide (ocfentanil).(12) N-(4-fluorophenyl)-N-(1-phenethylpiperidin-4 -yl) butyramide (para-fluorobutyryl fentanyl).(13) N-(1-phenethylpiperidin-4-yl)-N-phenylbutyramide, also known as N-(1-phenethylpiperidin-4-yl)-N-phenylbutanamide, (butyryl fentanyl).(14) N-(1-phenethylpiperidin-4-yl)-N-phenylpentanamide (valeryl fentanyl).(15) N-(4-methoxyphenyl)-N-(1-phenethylpiperidin -4-yl) butyramide (para-methoxybutyryl fentanyl).(16) N-[1-(2-thienyl)methyl-4-piperidyl]- N-phenylpropanamide (thenylfentanyl), including any isomers, salts, or salts of isomers (9834).(17) N-(1-phenethylpiperidin-4-yl)-N-phenylisobutyramide (isobutyryl fentanyl).(18) N-(1-phenethylpiperidin-4-yl)- Nphenylcyclopentanecarboxamide (cyclopentyl fentanyl).(19) Para-chloroisobutyryl fentanyl. Other name: N-(4-chlorophenyl)- N-(1-phenethylpiperidin- 4-yl) isobutyramide.(20) Para-fluorobutyryl fentanyl. Other name: N-(4- fluorophenyl)-N- (1-phenethylpiperidin- 4-yl)butyramide.(21) Para-fluorofentanyl (N-(4-fluorophenyl)-N-[1- (2-phenethyl)- 4-piperidinyl] propanamide (9812).(22) Para-methoxybutyryl fentanyl. Other name: N-(4- methoxyphenyl)-N- (1-phenethylpiperidin-4-yl)butyramide.(23) Tetrahydrofuranyl fentanyl. Other name: N-(1-phenethylpiperidin-4-yl)-N-phenyltetrahydrofuran-2-carb oxamide.(24) Thiofentanyl (N-phenyl-N-[ 1-(2-thienyl)ethyl-4- piperidinyl] -propanamide) (9835).(25) Valeryl fentanyl. Other name: N-(1-phenethylpiperidin-4-yl)-N-phenylpentanamide.(27) An immediate precursor to fentanyl: 4-Anilino- N-Phenethyl-4-Piperidine (ANPP).Added by P.L. 48-2023,SEC. 3, eff. 7/1/2023.