Product Overview

a-D2PV Crystal Chunks (α-Diphenylvalerophenone or diphenylpyrrolidinopenthenone) deliver a brandless, high-purity (≥98%) research chemical optimized for laboratory reference standards in synthetic cathinone analysis and structural elucidation. These crystal chunks support precise method validation and impurity profiling within controlled forensic and analytical research environments. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.

Researchers procure this compound for its unique diphenyl substitution distinguishing it from monophenyl pyrovalerones, enabling comparative MS fragmentation studies. Chunk format minimizes surface oxidation versus powders, preserving integrity during extended storage. Available immediately for qualified institutional purchase through compliant channels.

Global laboratories integrate a-D2PV into NPS surveillance panels, leveraging its structural novelty for retention time databases. Secure fulfillment ensures regulatory traceability essential for peer-reviewed publications.​

Chemical Identity & Classification

a-D2PV aligns with molecular formula C23H27NO and molecular weight 333.47 g/mol, featuring dual phenyl rings flanking the alpha-pyrrolidino valerophenone core. Synonyms include α-D2PV, DPPE, and 1,2-diphenyl-2-(pyrrolidin-1-yl)pentan-1-one. Classified as a diarylpyrrolidinophenone analytical reference within advanced synthetic cathinone subclasses.

InChI notation and canonical SMILES c1ccc(cc1)C(c2ccccc2)(CC)CCN3CCCC3 support library matching, with logP ~4.8 reflecting high lipophilicity for NP-HPLC. Chiral alpha center permits diastereomer resolution via cyclodextrin CSPs. This identity facilitates forensic differentiation from naphthylpyrovalerones like naphyrone.​

Chemical & Physical Characteristics

Crystal chunks appear as colorless to white translucent material, soluble in chloroform (>30 mg/mL), toluene, and warm ethanol, sparingly in acetonitrile. XLogP3 5.12 predicts extended RP-HPLC retention (k>20), TPSA 20.3 Ų favors ESI+ ionization. Stability excels under desiccated conditions, UV λmax 260 nm from biphenyl conjugation.

Chunk dimensions (1-5 mm) yield uniform fracture for weighing (CV<2%), DSC melting 95-110°C without decomposition. Vapor pressure low (<10^-6 torr), suitable for headspace GC. Conformational DFT minima favor twisted biphenyl axes, influencing NMR anisochrony. Physical traits position it ideally for LLE extractions versus polar matrices.​

Purity & Analytical Verification

Batches exceed 98% via UHPLC-C8 (ACN:AA 90:10, 0.3 mL/min), GC-TOF (EI m/z 333/192/105), qNMR (CDCl3, Ph3Si vs. internal), HRMS [M+H]+ 334.2118 (0.8 ppm). COAs cap diarylketone impurities <0.3%, volatiles <4000 ppm (HS-GC), ee racemic >99%. Fragments confirm Ph2C+ 167, pyrrolidinylpentyl 192.

Chiral SFC (Chiralpak IG, CO2/EtOH 85:15) Rs>3.5; Raman 1600 cm-1 biphenyl stretch. Orthogonal suites meet SWGDRUG Cat 1, third-party NABL optional. Metals <2 ppm (ICP-MS).​

Quality Control & Batch Integrity

Grignard diphenylation of pyrovalerone precursors, IPC NIR (C=O 1675 cm-1), 5-yr -30°C retainers. Batches log 84-92% AY, SPC purity Ppk 2.1. Audits verify C/D/N isotopes. eCOA blockchain, LIMS EDI. Stability ICH Q1A(R2) 60 mo.

Safety, Handling & Laboratory Precautions

Class 1 hoods (150 fpm), Viton/PFA gloves, P3 filters, Saranex suits. Trays with Attagel; PID 11.7eV. SDS H302/312/332, PhMgBr incompat. Spill: inert absorb, peroxide quench; RCRA D001.​

Packaging, Labeling & Storage

Schott Duran 10 mL amber, FEP septa, 25 N-m crimp, RFID/GHS (NFPA 221). -25°C Ar purged, 48 mo. UN1845 overbox.​

Intended Research Use & Market Positioning

HRMS LOQ 0.02 ng/mL, S9 metabolism, cathinone ELISA (1 ng/mL), diaryl QSAR. Forensics NIST+, pharma pyrovalerone scouts. Diaryl fills alpha-PVP gaps.

Ordering, Availability & Fulfillment

WooCommerce FIPS (crypto/ACH), DHL Med (2-4d). eCOA realtime, 35% bulk.

Legal & Regulatory Disclaimer

Research only; no human/vet/clinical. Buyers affirm ACMD/UN/DEA. Pre-verify; no liability. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.