pigment yellow 183 PH Value: 7 Density (g/cm3 ): 1.8 Oil Absorption ( ... Formula: C16H10CaCl2N4O7S2Synonyms:C.I.18792;Calcium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4 ... (°C): 280Water Resistance:5Oi Resistance l: 5Acid Resistance: 5Alkali Resistance: 5 Application: (Pigment Yellow RP): special used for plastics