The chemical compound with the CAS number 1370003-76-1 is known as YK11, a synthetic steroidal selective androgen receptor modulator (SARM). This product has garnered attention in the fields of bodybuilding and athletic performance enhancement due to its potent anabolic properties. YK11's unique structure, which incorporates a steroidal backbone, differentiates it from other non-steroidal SARMs and aligns it more closely with traditional anabolic steroids in terms of its mechanism of action and potential effects on muscle growth.
YK11 functions primarily by binding to androgen receptors in muscle and bone tissues, which promotes significant anabolic activity. This binding stimulates muscle cell proliferation and differentiation, contributing to muscle hypertrophy and increased strength. Additionally, YK11 has been shown to increase the levels of follistatin, a protein that inhibits myostatin. Myostatin is a negative regulator of muscle growth, and by inhibiting it, YK11 allows for more substantial and rapid muscle gains. This dual action makes YK11 particularly effective for individuals looking to enhance their muscle mass and performance.
Despite its promising anabolic capabilities, YK11's safety and efficacy are not well-established due to limited clinical research. Most of the information available comes from in vitro studies and anecdotal evidence from users. Potential side effects, such as liver toxicity, cardiovascular issues, and hormonal imbalances, have not been thoroughly investigated in controlled settings.
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