2C-B-BUTTERFLY Structure.svg
Clinical data
ATC code
  • none
  • 2-(10-Bromo-2,3,4,7,8,9-hexahydropyrano[2,3-g]chromen-5-yl)ethan-1-amine
CAS Number
PubChem CID
Chemical and physical data
Molar mass312.207 g·mol−1
3D model (JSmol)
  • O3CCCc1c3c(Br)c2CCCOc2c1CCN
  • InChI=1S/C14H18BrNO2/c15-12-11-4-2-7-17-13(11)10(5-6-16)9-3-1-8-18-14(9)12/h1-8,16H2

2C-B-BUTTERFLY (2C-B-MOTH, 2C-B-BFLY) is a conformationally-restricted derivative of the phenethylamine hallucinogen 2C-B, which was discovered in 1999 by Michael S. Whiteside and Aaron Monte.[1] It is a ring-expanded homologue of the better known compound 2C-B-FLY, and has similar properties as an agonist for serotonin receptors, but with more selectivity for 5-HT2C over 5-HT2A.[2][3]

Analogues and derivatives

Analogues and derivatives of 2C-B:




Substituted benzofurans:


Legal Status

2C-B-BUTTERFLY is illegal in Latvia.[4]

See also


  1. ^ Whiteside MS (1999). "Synthesis of hexahydrobenzodipyrans as ring-expanded analogues of potent serotonin 5-HT2A/2C receptor probes". UW-LaCrosseJUR. 2: 61–68. CiteSeerX
  2. ^ Whiteside MS, Kurrasch-Orbaugh D, Marona-Lewicka D, Nichols DE, Monte A (October 2002). "Substituted hexahydrobenzodipyrans as 5-HT2A/2C receptor probes". Bioorganic & Medicinal Chemistry. 10 (10): 3301–6. doi:10.1016/S0968-0896(02)00209-2. PMID 12150876.
  3. ^ Schultz DM, Prescher JA, Kidd S, Marona-Lewicka D, Nichols DE, Monte A (June 2008). "'Hybrid' benzofuran-benzopyran congeners as rigid analogs of hallucinogenic phenethylamines". Bioorganic & Medicinal Chemistry. 16 (11): 6242–51. doi:10.1016/j.bmc.2008.04.030. PMC 2601679. PMID 18467103.
  4. ^ "Noteikumi par Latvijā kontrolējamajām narkotiskajām vielām, psihotropajām vielām un prekursoriem" [Regulations Regarding Narcotic Drugs, Psychotropic Substances and Precursors Controlled in Latvia]. Methodological Guidelines for the Application of Annex 1 to the Cabinet Regulation No. 847 (in Latvian). Ministry of Health of the Republic of Latvia. 8 November 2005. Archived from the original on 4 March 2016. Retrieved 8 October 2015.