Sudan 4, certified, 0.25g Back Catalog number: C16986104 Availability: In the manufacturer's stock Price on request - + Recommended 96624 Synthetic Opiate Mix Price on request T4IPPP Tris(4-isopropylphenyl) phosphate, 1.2ml x 50ug/ml, toluene Price on request 35011 EPA Method 524.2 - Gases & Liquids Price on request