CR 665

Modify Date: 2025-08-22 12:26:01

CR 665 Structure
CR 665 structure
Common Name CR 665
CAS Number 228546-92-7 Molecular Weight 671.83200
Density N/A Boiling Point N/A
Molecular Formula C36H49N9O4 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of CR 665


CR 665 (JNJ 38488502) is a peripherally selective κ-opioid agonist. CR 665 can activate the kappa opioid receptor with EC50 value of 10.9 nM. CR 665 can be used for the research of peripheral pain[1][2].

 Names

Name (2R)-2-[[(2R)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-N-[(2R)-5-(diaminomethylideneamino)-1-oxo-1-(pyridin-4-ylmethylamino)pentan-2-yl]hexanamide
Synonym More Synonyms

 CR 665 Biological Activity

Description CR 665 (JNJ 38488502) is a peripherally selective κ-opioid agonist. CR 665 can activate the kappa opioid receptor with EC50 value of 10.9 nM. CR 665 can be used for the research of peripheral pain[1][2].
Related Catalog
Target

C50: 10.9 nM (κ-opioid)[1]

In Vitro CR 665 exhibits high peripheral to central nervous system (CNS) selectivity[1]. CR 665 can activate the kappa opioid receptor with EC50 value of 10.9 nM[1].

 Chemical & Physical Properties

Molecular Formula C36H49N9O4
Molecular Weight 671.83200
Exact Mass 671.39100
PSA 231.17000
LogP 6.67080

 Synonyms

UNII-3BX9UG06GG
D-Argininamide,D-phenylalanyl-D-phenylalanyl-D-norleucyl-N-(4-pyridinylmethyl)
CR665
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