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1.
2ci
2,5-dimethoxy-4-iodophenethylamine
An analogue of 2cb, 2ci is a relatively new hallucinogenic drug(2001) relative to acid and extasy. Until recently 2ci could be purchased online. The DEA is currently trying to prosecute several research chemical vendors for selling it. No individual has been prosecuted for 2ci.
I took around 20mg of 2ci about half an hour ago and am now TRIPPING BALLS.
by Chaos(not-the-same-as-entropy) October 27, 2005
 
2.
2C-I (2,5-Dimethoxy-4-Iodophenethylamine) is a phenethylamine somewhat similar in effects to 2C-B.

The standard oral dose is between 10 and 25 mg.
I drank 20 mg of 2C-I in orange juice and tripped for a few hours. It was kickass.
by Clamum March 04, 2004
 
3.
2C-I or 2,5-dimethoxy-4-iodophenethylamine is a psychedelic drug and phenethylamine of the 2C family. The drug is used recreationally as a stimulant, empathogen-entactogen and as an entheogen. 2C-I is taken orally. Users of 2C-I tend to report a physical stimulant effect, often quite strong and clean at small dosages (less than 12 mg).
Person A: I tried 6mg of 2C-I in orange juice and felt awake and alert for hours without being jittery or hyper. Thingy!
by Neon10 March 03, 2011
 
4.
2ci
2,5-dimethoxy-4-iodophenethylamine. A research chemical that is not scheduled in the United States. A potent phenethylamine, It is commonly used as a recreational drug, with psychedelic effects similar to a combination of MDMA and LSD. An common oral dose is anywhere from 5 to 25 mg, or less than a third of that amount insufflated. 2ci can be ordered over the Internet, although sources are becoming harder to find.

It produces visual hallucinogenic effects, and users report "seeing" music at higher doses. It also produces empathy and positive emotions in a fashion similar to MDMA. Some users report a pleasant inability to stop smiling.

It is a member of the 2C family, other 2C's include 2ce and 2cb. 2cb is currently illegal in the United States, and as such 2ci distribution could be prosecuted under the Federal Analogue Act. However, as of December 2010, no individuals have been prosecuted for 2ci.

Commonly goes by the street name "Isabel" or "Izzy." This comes from the letter I in 2ci, similar to how MDMA is called "Molly."
2ci goes for $20 for 20mg around here... that's about right for Izzy
by Arbit3r December 16, 2010