Also called MαPPP or 4-MαPPP, 4-methyl-α-pyrrolidinopropiophenone ( 4-MePPP ), with CAs 1313393-58-6 (HCl), IUPAC 1-(4-methylphenyl)-2-(pyrrolidin-1-yl) propan-1-one and formula weight 253.8, is a crystalline, white powder used for chemical research and scientific testing purposes.

This substance is a derivative of 4-methyl of a-PVP and has almost the same properties to a-PVP. Take note, PPPs (Pyrrolidinophenones) is a group of compounds featuring its pyrrolidinyl group, which is attached to the cathinone, a narcotic. 4’-Me-α-PPP (hydrochloride) shares almost the same structural properties with α-PPP and it has been tested on products, including the controversial bath salts. According to researchers, it reacts closely the same to cocaine and a-PVP, with duration lasting from an hour to two.

4′-Methyl-α-pyrrolidinopropiophenone was a designer drug sold in Germany in the late 90s up to the early 2000s, along with a few other pyrrolidinophenone derivatives. However, it did not achieve much international popularity as compared to MDPV and a-PPP, although it still is sometimes used as an ingredient in bath salt blends.

Blue Light user ‘Cyanoide’ reported his experience with this RC. He used insufflated ROA at 20mg dose and felt mild, subtle stimulation, along with slight euphoria and great pupil dilation. He said, the feeling somewhat reminded him of coke-high only without the ego-boost. Its effects came in five minutes, but were short lasting with duration of one and a half hour, without paranoia and anxiety. Continuing, he said insufflation came smooth minus the burn, although it smelled bad with drip tasting bad, too.

He related another user who noted that there was a slight rush initially at a dose from 30 to 40 mg and said he also agreed with that user claiming that the somatic effects were weak, making the RC quite friendly as compared to a cathinone. He did not measure his blood pressure or heart rate, but he felt no dramatic changes in either, especially in regards to vasoconstriction common with other substances. He concluded, it was not a compound for speed users looking for an intense euphoria or rush, but said that it’s in a way quite likeable with its gentle effects.

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