MPHP Crystal


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4′-Methyl-α-pyrrolidinohexiophenone HCI

Product information

IUPAC-name      (RS)-1-(4-Methylphenyl)-2-(1-pyrrolidinyl)-1-hexanone HCI

Synonyms        4′-methyl-α-PHP, 4′-methyl PHP, MPHP, PV4

Formal name      2-(pyrrolidin-1-yl)-1-(p-tolyl)hexan-1-one, monohydrochloride

Cas number       1391052-36-0

Formula             C17H25NO • HCl

Formula Weight    295.9

Formulation      Solid

Purity                 98.0 % min.
Appearance       Neat Solid


  • DMF: 3 mg/ml
  • DMSO: 10 mg/ml
  • Ethanol: 20 mg/ml
  • PBS (pH 7.2): 10 mg/ml
Shipping & Storage Information
Storage  -20°C
Shipping  Room Temperature in continental US; may vary elsewhere
Stability   ≥ 2 years

4′-Methyl-α-pyrrolidinohexiophenone (MPHP) is a stimulant chemical under the cathinone class which is closely related to pyrovalerone by a chain lengthened homolog. The position of the aryl, ketone, and pyrrolidinyl groups are kept constant in line with the stimulant activity in the pyrrolidinophenone series. The akyl backbone can be varied from three and up to seven carbons. The highest potency is always seen with the pentyl or isohexyl backbone. A variety of substituents are tolerated on the aromatic ring.

Not much is known about the pharmacological and toxicological properties of MPHP. Usage of this Chemical should be for research and forensic purposes only.


WARNING This product is not for human or veterinary use.

This product is only available to persons of 21 years old and above.
Hazard statement(s)
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
H332 Harmful if inhaled
H335 May cause respiratory irritation
H336 May cause drowsiness or dizziness
Precautionary statement(s)
P264 Wash hands thoroughly after handling
P280 Wear protective gloves/protective clothing/eye protection/face protection
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 + P313 If eye irritation persists: Get medical advice/attention
P261 Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray
P271 Use only outdoors or in a well-ventilated area
P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P312 Call a POISON CENTER or doctor/physician if you feel unwell
P403 + P233 Store in a well-ventilated place. Keep container tightly closed
P405 Store locked up
P501 Dispose of contents/container to a licensed disposal company

Additional information


10g, 25g, 50g, 100g, 250g, 500g, 1000g


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