U-48800 is an opioid analgesic drug analogue of originally U-47700,just added one methylene on the benzene ring,at the same time, 2,4-dichlorophenyl replaced the 3,4-dichlorophenyl. U-48800 is selective for the µ–opioid receptor, having around 7.5 x the potency of morph in animal models. Research results shows that U-48800 has the same potency level as originally U-47700. Use for laboratory research only, not for human consumption.

name	cas	name	cas	name	name	name
hex-en	592-41-6	4-mpd	1373918-61-6	FUB-AMB	MMB–FUB	fubakb48
dibutylone	802286-83-5	4-emc	1225622-14-9	MMB2201	MPHP2201	5fmdmb2201
bk-epdp	952016-47-6	4-cec	4-cdc	NM-2201	FUB2201	4FIBF
5f-adb	62-44-2	4cprc	82723-02-2	U-47700	5F-EAPB	MAF
etizolam	40054-69-1	4cl-pvp	5485-65-4	U-48800	U-49900	DICLAZEPAM
adbf	1445583-51-6	4f-php	13415-55-9	DIBUTYLONE	MPHP2201	PZM21
mexedrone	24622-60-4	appp	5.3-ab-c	2-ME-MAF	AKB48	AND SO ON
medhylone		th-pvp	mmb022	3-ME-MAF	FUB-AKB