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Tan Residue
Sold as: Heroin
ID: 12919
Result Photo Detail Photo
GC/MS Graph
Detail Photo
GC/MS Graph
Detail Photo
Sold as: Heroin
Expected to be: Heroin
Has Been Tried: Yes
Lab comments:
Unidentified Substance #1: 30 parts (now identified, see below)

Unidentified Substance #2: 20 parts (now tentatively identified, see below)
Tan residue in cooker. Submitter describes this as ''brown paste''.
''Felt like heroin not fentanyl''
April 14 2023: Given the presence of 1-boc-4-(4-fluorophenylamino)piperidine in this sample, the remaining unidentified analyte might be boc-p-fluoronorfentanyl, which would be part of a protecting strategy towards making 4-fluorofentanyl and fentanyl. (Thank you to K. for this identification.)

July 19 2022: The 1-boc-4-(4-fluorophenylamino)piperidine was initially unidentified, but has been established by library match.

There is no laboratory reference standard available as of July 19, 2022 to confirm this identification.