Lyophilized proteins are stable for 1 year from the date of receipt if stored between (-20°C) and (-80°C). Upon reconstitution we recommend that the solution can be stored at (4°C) for short term or at (-20°C) to (-80°C) for long term. Repeated freeze thaw cycles should be avoided with reconstituted products.----------------蛋白活性：N/A ；适用种属：human——————更多产品详情，请登录Proteintech官网查看：https://www.ptgcn.com/products/recombinant-human-hsa.htm