Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2941.9-100-NN alpha-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL, Price on request MPFDA Perfluoro-n-[1,2-13C2]decanoic acid, 1.2ml x 50ug/ml, methanol Price on request 674800 D4-Sulfamethoxazole, 10mg Price on request