MDPiHP

Salts []
3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone hydrochloride

Molecular structure via molpic based on CDK

Physical properties []
Molecular mass	289.4 g/mol ^[1]
Predicted LogP	3.7 ^[1]

Structural Identifiers []
Molecular formula	C₁₇H₂₃NO₃ ^[1]
IUPAC name	1-(1,3-benzodioxol-5-yl)-4-methyl-2-pyrrolidin-1-ylpentan-1-one ^[1]
SMILES	CC(C)CC(C(=O)C1=CC2=C(C=C1)OCO2)N3CCCC3 ^[1]
InChI	InChI=1S/C17H23NO3/c1-12(2)9-14(18-7-3-4-8-18)17(19)13-5-6-15-16(10-13)21-11-20-15/h5-6,10,12,14H,3-4,7-9,11H2,1-2H3 ^[1]
InChIKey	VRQRDQWKORSFMZ-UHFFFAOYSA-N ^[1]

3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone

3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone (also known as MDPIHP, 3,4-Methylenedioxy pihp, 1-(1,3-Benzodioxol-5-yl)-4-methyl-2-(1-pyrrolidinyl)-1-pentanone, 1-Pentanone, 1-(1,3-benzodioxol-5-yl)-4-methyl-2-(1-pyrrolidinyl)- or 1-(1,3-benzodioxol-5-yl)-4-methyl-2-pyrrolidin-1-yl-pentan-1-one) is a stimulant substance of the pyrrolidinophenone and methylenedioxyphenethylamine class.

Chemistry

Salts []

3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone is typically found in the form of its hydrochloride salt.

Stereochemistry []

3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone is a racemic mixture of the enantiomers

Stereoisomers
(R)-3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone (S)-3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone

Subjective effects []

Physical effects
Abnormal heartbeat Appetite suppression Dehydration Dry mouth Increased blood pressure Increased heart rate Increased libido Restless legs Shakiness Stamina enhancement Stimulation Teeth grinding Vasoconstriction

Cognitive effects
Analysis enhancement Cognitive euphoria Compulsive redosing Disinhibition Ego inflation Focus enhancement Increased music appreciation Mania Motivation enhancement Suggestibility suppression Thought acceleration Wakefulness

Anodyne Usernotes []
0xea / 3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone^{[hydrochloride]} via Insufflated and Intravenous	Strong Stimulation; Strong Euphoria; Moderately Entactogenic; Moderate Duration Insufflated

External links []

References []

National Center for Biotechnology Information. PubChem Compound Summary for CID 156588946, 3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone. Accessed August 14, 2025. https://pubchem.ncbi.nlm.nih.gov/compound/156588946
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 3,4-Methylenedioxy-α-pyrrolidinoisohexanophenone. UNII: 5R3QG4J3XS. Global Substance Registration System. Accessed August 14, 2025. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/5R3QG4J3XS