Also known as Ostarine, is a SARM (selective androgen receptor module), sr9009 (enhanced melt). CAS Number 841205-47-8 Appearance Powder Chemical Names ENOBOSARM; GTx-024; MK-2866; mk 2866, 841205-47-8; UNII-O3571H3R8N; O3571H3R8N; Molecular Formula C19H14F3N3O3 Molecular Weight 389. We also offer Ostarine Liquid Solution: Where to Buy Ostarine MK2866 Powder? Nootropic Source offers 1g, 5g, or 10g in a resealable mylar bag. Nootropic Source's Ostarine Mk 2866 has been lab-tested and verified for both product purity and identity.That depends on what your goals were to begin with, sr9009 (enhanced melt).