Internal Standard - Surrogate Mix Back Catalog number: 96032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72734 1,3,5-Tris(trifluoromethyl)benzene Price on request 673092 L-Ascorbic acid 6-palmitate, 250mg Price on request 32901 1,2,3,4-Tetramethylbenzene Price on request