blotter containing DOB

AMPHETAMINE (DOB)) IN AMES, IOWA The Iowa Criminalistics Laboratory (Ankeny, Iowa) recently received two full and two half pieces of blotter paper, 6 millimeters square, with unusual designs on both sides, suspected LSD “blotter acid” (see Photo 1 for the “blue side” and Photo 2 for the “green side”). “Blotter acid” with patterns on both sides is uncommon. The exhibits were seized in Ames by the Ames Police (circumstances unknown; Ames is located in central Iowa). Analysis of extracts by PDMAB (negative), Marquis (green), TLC, and GC/MS, however, indicated not LSD but rather 4-bromo-2,5-dimethoxyamphetamine (DOB) (not quantitated, but a moderate loading based on the GC/MS). This was the laboratory’s first encounter with DOB in any form. BLOTTER ACID MIMICS (CONTAINING 4-BROMO-2,5-DIMETHOXY-
AMPHETAMINE (DOB)) IN CONCORD, CALIFORNIA the Contra Costa County Sheriff - Coroner’s Office Forensic Services Division Laboratory (Martinez, California) recently received a small sheet of perforated paper divided into nine and a half squares, each 5 x 5 millimeters and imprinted with an ornate wheel-burst pattern surrounding a heart, suspected LSD “blotter acid” (see Photo 7). The exhibit was seized in Concord, California by the Concord Police (details unavailable; Concord is about 30 miles east of San Francisco). Preliminary screening by long-wavelength UV and para-dimethylaminobenzaldehyde (PDMBA), however, were both negative for LSD. Analysis of a methanolic extract by GC/MS instead identified 4-bromo-2,5-dimethoxyamphetamine (DOB), not formally quantitated but a moderate loading based on the TIC. This is the first submission of DOB, and is also believed to be the first submission of an LSD blotter acid mimic and the first submission of this unusual logo, to the laboratory.

blotter containing DOB
Terrapinzflyer, Sep 18, 2009