Powder reagents for total chlorine (100 tests)

17ß(H),21ß(H)-25,28,30-Trisnorhopane (in mixture with 2632.27 (ß alpha-)), neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 92692-42-7

2-NP-AHD, 10mg

Heptachlor, 100mg