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MDPHP (3′,4′-Methylenedioxy-α-pyrrolidinohexiophenone) Crystals – High-Purity Research Chemical – 1g / 5g / 10g Packs – UK Next-Day Discreet Delivery

MDPHP, also known as 3′,4′-Methylenedioxy-α-pyrrolidinohexiophenone or “monkey dust” in street nomenclature, is a potent synthetic cathinone and novel psychoactive substance (NPS) belonging to the pyrovalerone family. This research chemical is structurally related to MDPV, α-PVP, and α-PHP, featuring the characteristic 3,4-methylenedioxy ring fused to a longer hexanophenone chain with a pyrrolidine ring. At ukmushroomsok.com we supply laboratory-grade MDPHP in pure crystalline form (>98% purity confirmed by third-party HPLC/MS analysis), appearing as large, translucent-to-opaque white/off-white crystals or shards with a characteristic mild chemical odour.

MDPHP is one of the most powerful and longest-lasting stimulants in the current NPS cathinone landscape. Researchers and private individuals in the UK report extremely strong monoamine reuptake inhibition (primarily dopamine and norepinephrine, with significant serotonin activity), producing intense euphoria, hyperfocus, extreme motivation, wakefulness, elevated heart rate, vasoconstriction, and compulsive redosing behaviour. Duration is notably extended compared to shorter-chain analogs: onset within 5–15 minutes (insufflated/vaped), peak effects 1–3 hours, total duration 8–16+ hours, with residual stimulation frequently lasting into the following day. The compound is renowned for producing an exceptionally “fiendish” profile – overwhelming desire to redose, tunnel vision on tasks, music enhancement, sexual arousal amplification, and a very high abuse liability even at low doses.

Product specifications – genuine UK/EU research stock:

  • Chemical name: 3′,4′-Methylenedioxy-α-pyrrolidinohexiophenone
  • CAS: 1445751-40-5
  • Purity: >98% (third-party COA provided with batch number)
  • Appearance: Large, glassy white/off-white crystals or shards
  • Pack sizes: 1g, 5g, 10g (larger quantities available on request)
  • Storage: Cool, dry, dark place (stable at room temperature for 24+ months)
  • Testing: Every batch undergoes HPLC, GC-MS, and NMR verification; QR code on packaging links directly to current certificate of analysis

All MDPHP crystals ship from within the United Kingdom in triple-layered discreet packaging: vacuum-sealed mylar inner pouch, smell-proof barrier bag, plain unmarked outer box with no mention of contents, company name, or ukmushroomsok.com visible externally. Orders placed before 3pm Monday–Friday dispatch same day via Royal Mail Special Delivery Guaranteed by 1pm next working day to any mainland UK postcode.

Why UK researchers choose MDPHP from UK Mushrooms OK:

  • 100% genuine laboratory-grade material (no street-cut product)
  • Highest available purity with transparent batch testing
  • No prescription required for research chemical purchase under current UK REACH regulations
  • Prices from £69 per 1g, £299 per 5g, £549 per 10g (bulk discounts beyond 25g)
  • Same-day dispatch and full crypto payment options for maximum anonymity
  • 4.9/5 Trustpilot rating from NPS research buyers

Research notes & common observations (for informational purposes only):

  • Extremely high potency: Active doses reported from 5–30mg (insufflated/vaped), with 10–20mg being a common research threshold
  • Route-dependent duration: Vaporisation/insufflation provides fastest onset and highest intensity; oral ingestion significantly extends duration but reduces peak euphoria
  • Subjective effects frequently include: intense rush, compulsive task focus, extreme wakefulness, heightened music appreciation, sexual enhancement, vasoconstriction, bruxism, hyperthermia, anxiety/paranoia at higher doses
  • High risk profile: Significant potential for compulsive redosing, cardiovascular strain, psychosis-like states, and severe insomnia
  • Sold strictly as a research chemical – not for human consumption

In 2026, MDPHP remains one of the most sought-after pyrovalerone analogs on the UK research chemical market due to its exceptional duration, potency, and euphoric profile. Whether conducting analytical studies, structure-activity relationship experiments, or forensic reference work, our high-purity MDPHP crystals offer consistent, reliable material trusted by UK laboratories and private researchers alike.