3C-P is mentioned briefly in PiHKAL as the unexplored "amphetamine homologue" of proscaline (#140, or "P"). Very little is known about this substance and it should not be considered safe for human ingestion.

Data Confidence:
Very tentative.

Chemical:
3,5-dimethoxy-4-propyloxyamphetamine

Type:
Stimulant, possible psychedelic or empathogen.

Prevalence:
Exotic / Very Rare

Dosage:
Very rough estimates. Threshold 5-10 mg; Medium 10-40 mg; Strong 40+ mg.

Duration:
Probably long, 8 - 16 hours.

Safety:
Unknown. Humans have survived ingestion of up to 50 mg oral.

Availability:
Through research chemical market. Sold semi-publicly in late 2003 through at least one source.

Field Tests:
Marquis reagent reacts orange with the 3C-P sold in 2003.

Experiences:
We know of a dozen or so reports of human 3C-P ingestion. Various authors, unverified provenance:
8 mg: "I want to call this a threshold"; 16 mg: "something like 5 mg of Adderall"; 20 mg: "overall, the experience was very mild"; 30 mg: "+3 euphoric period lasting 3 hours-ish and then a +2 psychedelic amphetamine feeling for another 12+ hours... unable to sleep (and kind of tired) is pretty annoying"; 30 mg: "for me, 30 mg was perfect... [but] I should reiterate that the duration was annoying"; 40 mg: "an average dose".

Literature Mentions:
Shulgin A, Shulgin A. PiHKAL: A Chemical Love Story. Transform Press, 1991.

Trachsel D. "Synthesis of novel (phenylalkyl)amines for the investigation of structure-activity relationships: part 1 mescaline derivatives", helvetica Chimica Acta. 2003; 85(9):3019-26.