We are offering pigment red. avail from our wide range of high quality pigment red 49:2 that are used in many chemical applications and industries. Our range of pigment red 49: 2 are highly in demand in the market because of its quality features like high solubility, thick concentrated form. specifications : chemical name :suthol red (calcium)cas no. : 1103-39-5eu no. : 214-161-1c.i. No. : 15630:2chemical formula : c40h26n4o8s21/2camolecular weight : 774.90application :offset inkssolvent inksaqueous inks.