Testosterone Cypionate Powder Testosterone Long Ester Depot Steroid Manufacturer Sales Testosterone Cypionate Profile Testosterone base + cypionate ester Molecular  Formula: C27 H40 O3 Molecular Weight: 412.6112 Melting Point (base): 155 °C Melting Point (ester): 98 – 104 °C What is Testosterone Cypionate ?  Testosterone cypionate (brand names Depo-Testosterone, many others), or testosterone cipionate, also known as testosterone cyclopentylpropionate or testosterone cyclopentanepropionate, …