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MedKoo CAT#: 329305

CAS#: 2062-84-2

Description: Benperidol, also known as Anquil and R-4584, is a butyrophenone antipsychotic, with the highest neuroleptic potency in terms of D2 receptor blockade. Benperidol can be used for positron emission tomography (PET) measurements of D(2)-like dopamine receptor binding in vivo.

Price and Availability

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Pricing updated 2020-08-10. Prices are subject to change without notice.

Benperidol is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 329305
Name: Benperidol
CAS#: 2062-84-2
Chemical Formula: C22H24FN3O2
Exact Mass: 381.1853
Molecular Weight: 381.4514
Elemental Analysis: C, 69.27; H, 6.34; F, 4.98; N, 11.02; O, 8.39

Related CAS #: 74298-73-0 (HCl)   2062-84-2 (free base)  

Synonym: Benperidol; R-4584; R 4584; R4584; Anquil; McN-JR-4584; McN JR 4584; McNJR4584

IUPAC/Chemical Name: 1-(1-(4-(4-fluorophenyl)-4-oxobutyl)piperidin-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one


InChi Code: InChI=1S/C22H24FN3O2/c23-17-9-7-16(8-10-17)21(27)6-3-13-25-14-11-18(12-15-25)26-20-5-2-1-4-19(20)24-22(26)28/h1-2,4-5,7-10,18H,3,6,11-15H2,(H,24,28)


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


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8: Nikolaus S, Larisch R, Beu M, Hamacher K, Forutan F, Vosberg H, Müller HW. In vivo measurement of D2 receptor density and affinity for 18F-(3-N-methyl)benperidol in the rat striatum with a PET system for small laboratory animals. J Nucl Med. 2003 Apr;44(4):618-24. PubMed PMID: 12679408.

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