EPA Method 1666Labeled Standard Back Catalog number: 82493 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11918.4-10MG Hexachloro-1,3-butadiene-13C4,neat,neat,10mg, Price on request 57125 Manganese (Mn) Price on request 96556 Clomipramine HCl Price on request