Though little studied, A-PPP crystal could be abused as a substitute for methamphetamine or cocaine.

A-PPP Crystal, a designer drug also known as α-pyrrolidinopropiophenone and sometimes called as α-PPPalpha-ppp as well as (RS)-1-Phenyl-2-(1-pyrrolidinyl)-1-propanone, weighs 203.28 g/mol and has the chemical formula C13H17NO. Structurally, it is close to pyrovalerone (its analog), diethylpropion (an appetite suppressant), and methcathinone. It is assumed to be less addictive and less potent than pyrovalerone or MDPV.Read More about appp crystal here

NM-2201, which may also go by the name CBL-2201, is a synthetic cannabinoid that has a chemical structure that includes an indole core group.

NM-2201 goes under the IUPAC name of naphthalen-1-yl 1-(5-fluoropentyl)-1H-indole-3-carboxylate. It has a molar mass of 375.4 grams and an empirical chemical formula of C24H22FNO2. Read More about nm2201 here

Etizolam, sometimes classed perhaps erroneously as a research chemical, is a drug that is increasing in popularity. For many, it is a viable alternative to short acting anxiety medicine Xanax (Alprazolam).

Etizolam tends to be sold online, by vendors who stock other “grey market” drugs like substituted cathinones and synthetic cannabinoids. Due to this association in the marketplace, it probably has gained reputation as a so called “research chemical”. Read more about etizolam here

methoxy-Acetylfentanyl is a fentanyl analog designer drug

methoxy-Acetylfentanyl (also written as Acetyl fentanyl or more formally as N-(1-Phenethylpiperidin-4-yl)-N-phenylacetamide) is an opioid analgesic designer drug analog of fentanyl in the piperidine class of chemicals. Acetylfentanyl is roughly 15 times more potent than heroine and up to 80 times more potent than morphine but 15 times less potent than fentanyl. Read more about methoxyacetylefentanyl here

U-47700, a new synthetic opioid exhibits high potency

U-47700 dubbed as Pinky acts as a highly active agonist of the mu-opioid receptor and a novel agonist of kappa receptors. It is structurally isomeric to one of its family of opioid drugs as AH-7921 .

U-47700 has been found to be divergent opioid amongst benzamides. It is characterized by a phenyl ring bound to two chlorine atoms located at carbon R3 and R4. read more about u477700 here