can't read?
Phosphorus pentasulfide is the inorganic compound with the formula P4S10. This yellow solid is the one of two phosphorus sulfides of commercial value. Samples often appear greenish-gray due to impurities.(End user certificate required)
P 0271 (OTTO) Phosphorous pentasulphide, 99% Cas 1314-80-3 - used to deoxygenate sulfoxides.