iDrain Copper Sulfate Pentahydrate Crystals (CuSO4·5H2O) is a high-purity industrial chemical designed for laboratory, industrial, and general-purpose applications. Manufactured to consistent quality standards, this product delivers reliable performance with 99% purity and a uniform blue crystal structure for controlled handling and storage. This industrial grade copper sulfate features a bright blue crystalline appearance and is suitable for laboratory use, industrial processes, and general chemical applications. Packaged in a durable resealable pouch to help maintain purity and reduce moisture exposure during storage. Product specifications include CAS Number 7758-99-8, molecular formula CuSO4·5H2O, and net weight of 1 lb (16 oz). Intended for non-pesticide applications only. Danger: Harmful if swallowed. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. Store in a cool, dry, well-ventilated area and keep container tightly closed when not in use. Distributed by HBG Distribution Inc.