S4 Is a sARM
Premier-Pharmaceuticals Sarms Andarine & Ostarine Purchased at www.musclechemadvancedsupps.com
Oral Sublingual Patent Pending Special Formulation
Mol. mass 441.357 g/mol
chemical name: S-3-(4-acetylaminophenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3- tr...