We received a sample this month that was sold as 6-APB but the lab identified by library match to be 5-MAPDB. A “library match” is not 100% guaranteed to be a positive identification because it means that the mass spectrum was consistent with a published mass spectrum from an established library. What library matches are missing is exactly the gas chromotagraphic timing and the exact minor details around the edges of the spectrum that are unique to each type of analytic equipment.
To confirm the identification, we ordered analytical standards from Cayman for 5-MAPDB. The lab ran the standard and then compared them against the submitted sample (ID:3688) and found they matched exactly, confirming their library match that the sample is 5-MAPDB.