2,3-dibromopropionic acid Back to: Internal Standards and Surrogates 1,2,3-trichloropropane Product Code: 31648 SV Mix, 552 Method, 1,2,3-Trichloropropane Internal Std, 1ml, MTBE Price £38.00 Description Internal Standard: cat.# 31648Surrogates for Method 552, 552.1: cat.#'s 31650, 31652, 31649, 31651Surrogates for Method 552.2: cat.#'s 31653, 31655, 31654, 31656Surrogates for Method 552.3: cat.#'s 31881, 31882