SPI Chem Stains

SPI-Chem stains for light and electron microscopy are certified to be of the highest quality and purity available. SPI-Chem stains are manufactured so as to exhibit fast dissolution characteristics and to be homogeneous and free-flowing. We offer a complete line of known electron dense stains, both positive and negative, for use with transmission electron microscopy procedures. Our customers have the choice of purchasing their stains and dyes either in dry powder form or in convenient readymade solutions.