{"id":534,"date":"2026-06-07T23:41:36","date_gmt":"2026-06-07T23:41:36","guid":{"rendered":"https:\/\/biosynlab.com\/?post_type=product&p=534"},"modified":"2026-06-23T03:20:23","modified_gmt":"2026-06-23T03:20:23","slug":"buy-s-4-andarine-capsules","status":"publish","type":"product","link":"https:\/\/www.biosynlab.com\/?product=buy-s-4-andarine-capsules","title":{"rendered":"Buy S-4 (Andarine) Capsules"},"content":{"rendered":"

Premium S-4 (Andarine) Capsules – Industrial Grade Research Chemical<\/h1>\n

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Product Details Table<\/strong><\/h2>\n
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Attribute<\/strong><\/th>\nSpecification<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Brand<\/strong><\/td>\nBioSynLab Research Compounds<\/td>\n<\/tr>\n
Product Name<\/strong><\/td>\nS-4 (Andarine)<\/td>\n<\/tr>\n
Synonyms<\/strong><\/td>\nAndarine, GTX-007, S4, Acetamidoxolutamide<\/td>\n<\/tr>\n
CAS Number<\/strong><\/td>\n401900-40-1<\/td>\n<\/tr>\n
Molecular Formula<\/strong><\/td>\nC\u2081\u2089H\u2081\u2088F\u2083N\u2083O\u2086<\/td>\n<\/tr>\n
Molecular Weight<\/strong><\/td>\n441.36 g\/mol<\/td>\n<\/tr>\n
Chemical Class<\/strong><\/td>\nSelective Androgen Receptor Modulator (SARM) – First Generation<\/td>\n<\/tr>\n
Purity<\/strong><\/td>\n\u226599.0% (HPLC Verified)<\/td>\n<\/tr>\n
Dosage Form<\/strong><\/td>\nHard Gelatin Capsules<\/td>\n<\/tr>\n
Unit Dose<\/strong><\/td>\n25mg, 50mg, or 75mg (custom available)<\/td>\n<\/tr>\n
Capsule Size<\/strong><\/td>\nSize 3 (25mg), Size 1 (50mg), Size 0 (75mg)<\/td>\n<\/tr>\n
Capsule Color<\/strong><\/td>\nYellow opaque (25mg), Orange\/White (50mg), Orange (75mg)<\/td>\n<\/tr>\n
Fill Weight<\/strong><\/td>\n150-350mg (API + excipients)<\/td>\n<\/tr>\n
Excipients<\/strong><\/td>\nMicrocrystalline cellulose, Magnesium stearate, Silicon dioxide<\/td>\n<\/tr>\n
Packaging<\/strong><\/td>\nHDPE bottles (30, 60, 90 count) or blister packs<\/td>\n<\/tr>\n
Storage<\/strong><\/td>\n2-25\u00b0C, Desiccated, Light Protected<\/td>\n<\/tr>\n
Shelf Life<\/strong><\/td>\n24 months (sealed container)<\/td>\n<\/tr>\n
Documentation<\/strong><\/td>\nCOA, HPLC, NMR, MS, MSDS, Stability Data<\/td>\n<\/tr>\n
Shipping<\/strong><\/td>\nAmbient Temperature, Discrete<\/td>\n<\/tr>\n
Origin<\/strong><\/td>\nEU\/GMP Certified Laboratory<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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S-4 (Andarine) Capsules | First-Generation SARM for Androgen Receptor Research | BioSynLab<\/strong><\/h3>\n

BioSynLab<\/strong>\u00a0presents\u00a0pharmaceutical-grade S-4 (Andarine)<\/strong>\u00a0in\u00a0convenient capsule formulation<\/strong>\u00a0for\u00a0advanced androgen receptor research<\/strong>,\u00a0partial agonist studies<\/strong>, and\u00a0comparative SARM pharmacology<\/strong>. As one of the\u00a0first non-steroidal SARMs<\/strong>\u00a0developed, Andarine serves as a\u00a0critical historical reference compound<\/strong>\u00a0for investigating\u00a0tissue-selective androgen signaling<\/strong>,\u00a0partial agonist mechanisms<\/strong>, and\u00a0off-target receptor interactions<\/strong>\u00a0in laboratory settings.<\/p>\n

Chemical Architecture & First-Generation SARM Design<\/strong><\/h3>\n

S-4 (Andarine, GTX-007)<\/strong>\u00a0represents the\u00a0aryl propionamide class<\/strong>\u00a0of\u00a0first-generation SARMs<\/strong>, featuring a\u00a0distinctive structural scaffold<\/strong>\u00a0that established the\u00a0foundation for subsequent SARM development<\/strong>:<\/p>\n

Structural Features:<\/strong><\/p>\n