Consolidated Index of Controlled Substances
0 to 9
3D rendering of α-ET
α-ET
CA: CDSA Schedule III Section 28 Etryptamine
UK: MDA Part I Class A Section 1(a) Etryptamine
UN: Psychotropics Schedule I Etryptamine
US: CSA Schedule I Section d Subsection 1 Alpha-ethyltryptamine
⇒
PubChem: 8367; ChemSpider: 8064; Bluelight: AET; Erowid: AET; TiHKAL • info: α-ET; Wikipedia: alpha-Ethyltryptamine
3D rendering of α-MT
α-MT† 
US: CSA Schedule I Section d Subsection 16 Alpha-methyltryptamine
⇒
PubChem: 9287; ChemSpider: 8930; Bluelight: AMT; Drugs Forum: AMT; Erowid: AMT; TiHKAL • info: α-MT; Wikipedia: alpha-Methyltryptamine
3D rendering of α-PBP
α-PBP
US: CSA Schedule I Section h Subsection 20 alpha-Pyrrolidinobutiophenone
⇒
PubChem: 23199082; ChemSpider: 16251917; Wikipedia: alpha-Pyrrolidinobutiophenone
3D rendering of α-PVP
α-PVP
US: CSA Schedule I Section h Subsection 13 alpha-Pyrrolidinopentiophenone
⇒
PubChem: 11148955; ChemSpider: 9324063; Drugs Forum: ?-PVP; Wikipedia: alpha-Pyrrolidinopentiophenone
3D rendering of 1,4-BD
1,4-BD† 
CA: CDSA Schedule VI Part 1 Subsection 19 1,4-Butanediol
UK: MDA Part III Class C Section 1(b) 1,4-Butanediol
⇒
PubChem: 8064; ChemSpider: 13835209; Drugs Forum: 1,4-Butanediol; Erowid: 1,4-Butanediol; Wikipedia: 1,4-Butanediol
3D rendering of 25B-NBOMe
25B-NBOMe† 
UK: MDA Part I Class A Section 1(f) 2-(4-Bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 6
US: [proposed] CSA Schedule I Section d Subsection 50 2-(4-Bromo-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 9977044; ChemSpider: 8152636; Bluelight: 25B-NBOMe; Drugs Forum: 25B-NBOMe; Wikipedia: 25B-NBOMe
3D rendering of 25C-NBOMe
25C-NBOMe† 
UK: MDA Part I Class A Section 1(f) 2-(4-Chloro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Chloro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 5
US: [proposed] CSA Schedule I Section d Subsection 49 2-(4-Chloro-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 46856354; ChemSpider: 24583389; Bluelight: 25C-NBOMe; Drugs Forum: 25C-NBOMe; Erowid: 25C-NBOMe; Wikipedia: 25C-NBOMe
3D rendering of 2,5-DMA
2,5-DMA
CA: CDSA Schedule I Section 19 Subsection 5 2,5-Dimethoxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 6 2,5-Dimethoxyamphetamine
UK: MDA Part I Class A Section 1(c) 2,5-Dimethoxyamphetamine
UN: Psychotropics Schedule I DMA
US: CSA Schedule I Section d Subsection 4 2,5-Dimethoxyamphetamine
⇒
PubChem: 62787; ChemSpider: 56526; PiHKAL • info: 2,5-DMA; Wikipedia: Dimethoxyamphetamine
3D rendering of 25D-NBOMe
25D-NBOMe† 
UK: MDA Part I Class A Section 1(f) 2-(2,5-Dimethoxy-4-methylphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(2,5-Dimethoxy-4-methylphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
⇒
ChemSpider: 29341727; Drugs Forum: 25D-NBOMe; Wikipedia: 25D-NBOMe
3D rendering of 25I-NBOMe
25I-NBOMe† 
EU: Substances Substances 2-(4-Iodo-2,5-dimethoxy)-N-(2-methoxybenzyl) phenethylamine
UK: MDA Part I Class A Section 1(f) 2-(4-Iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 4
US: [proposed] CSA Schedule I Section d Subsection 48 2-(4-Iodo-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 10251906; ChemSpider: 8427392; Bluelight: 25I-NBOMe; Drugs Forum: 25I-NBOMe; Erowid: 25I-NBOMe; Wikipedia: 25I-NBOMe
3D rendering of 2 C-B
2 C-B
CA: CDSA Schedule III Section 24 4-Bromo-2,5-dimethoxybenzeneethanamine
UK: MDA Part I Class A Section 1(c) 4-Bromo-2,5-dimethoxyphenethylamine
UN: Psychotropics Schedule II 2 C-B
US: CSA Schedule I Section d Subsection 3 4-Bromo-2,5-dimethoxyphenethylamine
⇒
PubChem: 98527; ChemSpider: 88978; Bluelight: 2C-B; Drugs Forum: 2C-B; Erowid: 2C-B; PiHKAL • info: 2C-B; Wikipedia: 2C-B
3D rendering of 2C-B
2C-B
CA: CDSA Schedule III Section 24 4-Bromo-2,5-dimethoxybenzeneethanamine
UK: MDA Part I Class A Section 1(c) 4-Bromo-2,5-dimethoxyphenethylamine
UN: Psychotropics Schedule II 2 C-B
US: CSA Schedule I Section d Subsection 3 4-Bromo-2,5-dimethoxyphenethylamine
⇒
PubChem: 98527; ChemSpider: 88978; Bluelight: 2C-B; Drugs Forum: 2C-B; Erowid: 2C-B; PiHKAL • info: 2C-B; Wikipedia: 2C-B
3D rendering of 2C-B-NBOMe
2C-B-NBOMe
UK: MDA Part I Class A Section 1(f) 2-(4-Bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 6
US: [proposed] CSA Schedule I Section d Subsection 50 2-(4-Bromo-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 9977044; ChemSpider: 8152636; Bluelight: 25B-NBOMe; Drugs Forum: 25B-NBOMe; Wikipedia: 25B-NBOMe
3D rendering of 2C-C
2C-C
UK: MDA Part I Class A Section 1(c) 4-Chloro-2,5-dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 40 2-(4-Chloro-2,5-dimethoxyphenyl)ethanamine
⇒
PubChem: 29979100; ChemSpider: 21106221; Bluelight: 2C-C; Drugs Forum: 2C-C; Erowid: 2C-C; Wikipedia: 2C-C
3D rendering of 2C-C-NBOMe
2C-C-NBOMe
UK: MDA Part I Class A Section 1(f) 2-(4-Chloro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Chloro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 5
US: [proposed] CSA Schedule I Section d Subsection 49 2-(4-Chloro-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 46856354; ChemSpider: 24583389; Bluelight: 25C-NBOMe; Drugs Forum: 25C-NBOMe; Erowid: 25C-NBOMe; Wikipedia: 25C-NBOMe
3D rendering of 2C-D
2C-D
UK: MDA Part I Class A Section 1(c) 2,5-Dimethoxy-4-methylphenethylamine
US: CSA Schedule I Section d Subsection 39 2-(2,5-Dimethoxy-4-methylphenyl)ethanamine
⇒
PubChem: 135740; ChemSpider: 119559; Bluelight: 2C-D; Drugs Forum: 2C-D; Erowid: 2C-D; Wikipedia: 2C-D
3D rendering of 2C-E
2C-E
UK: MDA Part I Class A Section 1(c) 4-Ethyl-2,5-dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 38 2-(2,5-Dimethoxy-4-ethylphenyl)ethanamine
⇒
PubChem: 24729233; ChemSpider: 21106222; Bluelight: 2C-E; Drugs Forum: 2C-E; Erowid: 2C-E; Wikipedia: 2C-E
3D rendering of 2C-G-3
2C-G-3† 
UK: MDA Part I Class A Section 1(ba) 2-(4,7-Dimethoxy-2,3-dihydro-1H-indan-5-yl)ethylamine
⇒
PubChem: 44350123; ChemSpider: 23206516; PiHKAL • info: 2C-G-3; Wikipedia: 2C-G
3D rendering of 2C-G-4
2C-G-4† 
UK: MDA Part I Class A Section 1(ba) 2-(1,4-Dimethoxy-5,6,7,8-tetrahydro-2-naphthyl)ethylamine
⇒
PiHKAL • info: 2C-G-4; Wikipedia: 2C-G
3D rendering of 2C-G-5
2C-G-5† 
UK: MDA Part I Class A Section 1(ba) 2-(1,4-Methano-5,8-dimethoxy-1,2,3,4-tetrahydro-6-naphthyl)ethylamine
⇒
PubChem: 44349968; ChemSpider: 23206405; PiHKAL • info: 2C-G-5; Wikipedia: 2C-G
3D rendering of 2C-G-N
2C-G-N† 
UK: MDA Part I Class A Section 1(ba) 2-(1,4-Dimethoxy-2-naphthyl)ethylamine
⇒
PubChem: 21796713; ChemSpider: 10546842; PiHKAL • info: 2C-G-N; Wikipedia: 2C-G
3D rendering of 2C-H
2C-H
UK: MDA Part I Class A Section 1(c) 2,5-Dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 44 2-(2,5-Dimethoxyphenyl)ethanamine
⇒
PubChem: 76632; ChemSpider: 69096; Wikipedia: 2C-H
3D rendering of 2C-I
2C-I
EU: Substances Substances 2C-I
UK: MDA Part I Class A Section 1(c) 4-Iodo-2,5-dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 41 2-(4-Iodo-2,5-dimethoxy-phenyl)ethanamine
⇒
PubChem: 10267191; ChemSpider: 8442670; Bluelight: 2C-I; Drugs Forum: 2C-I; Erowid: 2C-I; Wikipedia: 2C-I
3D rendering of 2C-I-NBOMe
2C-I-NBOMe
EU: Substances Substances 2-(4-Iodo-2,5-dimethoxy)-N-(2-methoxybenzyl) phenethylamine
UK: MDA Part I Class A Section 1(f) 2-(4-Iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 2-(4-Iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
US: CSA Schedule I Section h Subsection 4
US: [proposed] CSA Schedule I Section d Subsection 48 2-(4-Iodo-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine
⇒
PubChem: 10251906; ChemSpider: 8427392; Bluelight: 25I-NBOMe; Drugs Forum: 25I-NBOMe; Erowid: 25I-NBOMe; Wikipedia: 25I-NBOMe
3D rendering of 2C-N
2C-N
US: CSA Schedule I Section d Subsection 45 2-(2,5-Dimethoxy-4-nitrophenyl)ethanamine
⇒
PubChem: 10036637; ChemSpider: 8212202; Bluelight: 2C-N; Wikipedia: 2C-N
3D rendering of 2C-P
2C-P
UK: MDA Part I Class A Section 1(c) 2,5-Dimethoxy-4-propylphenethylamine
US: CSA Schedule I Section d Subsection 46 2-(2,5-Dimethoxy-4-(n)-propyl-phenyl)ethanamine
⇒
PubChem: 44350080; ChemSpider: 21106226; Bluelight: 2C-P; Drugs Forum: 2C-P; Erowid: 2C-P; Wikipedia: 2C-P
3D rendering of 2C-T-2
2C-T-2
EU: Substances Substances 2C-T-2
UK: MDA Part I Class A Section 1(c) 4-Ethylthio-2,5-dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 42 2-[4-(Ethylthio)-2,5-dimethoxyphenyl]ethanamine
⇒
PubChem: 12074193; ChemSpider: 16787961; Bluelight: 2C-T-2; Drugs Forum: 2C-T-2; Erowid: 2C-T-2; Wikipedia: 2C-T-2
3D rendering of 2C-T-4
2C-T-4
UK: MDA Part I Class A Section 1(c) 4-Isopropylthio-2,5-dimethoxyphenethylamine and 4-Isopropylthio-2,5-dimethoxyphenethylamine
US: CSA Schedule I Section d Subsection 43 2-[4-(Isopropylthio)-2,5-dimethoxy-phenyl]ethylamine
⇒
PubChem: 44350070; ChemSpider: 21106232; Bluelight: 2C-T-4; Erowid: 2C-T-4; Wikipedia: 2C-T-4
3D rendering of 2C-T-7
2C-T-7
EU: Substances Substances 2C-T-7
UK: MDA Part I Class A Section 1(c) 2,5-Dimethoxy-4-(n)-propylthiophenenthylamine
US: CSA Schedule I Section d Subsection 6 2,5-Dimethoxy-4-(n)-propylthiophenenthylamine
⇒
PubChem: 24728635; ChemSpider: 21106233; Bluelight: 2C-T-7; Drugs Forum: 2C-T-7; Erowid: 2C-T-7; PiHKAL • info: 2C-T-7; Wikipedia: 2C-T-7
3D rendering of 3-FMC
3-FMC
US: CSA Schedule I Section h Subsection 18 3-Fluoro-N-methylcathinone
⇒
PubChem: 53415330; ChemSpider: 24958236; Drugs Forum: 3-FMC; Wikipedia: 3-Fluoromethcathinone
3D rendering of 4-FMC
4-FMC
UK: MDA Part II Class B Section 1(aa) Flephedrone
US: CSA Schedule I Section h Subsection 17 4-Fluoro-N-methylcathinone
⇒
PubChem: 49853406; ChemSpider: 21477355; Drugs Forum: Flephedrone; Erowid: 4-Fluoromethcathinone (4-FMC); Wikipedia: 4-Fluoromethcathinone
3D rendering of 4-H2PO4-DMT
4-H2PO4-DMT† 
CA: CDSA Schedule III Section 12 Psilocybin
UK: MDA Part I Class A Section 1(b) Psilocybin
UN: Psychotropics Schedule I Psilocybine
US: CSA Schedule I Section d Subsection 29 Psilocybin
⇒
PubChem: 10624; ChemSpider: 10178; Drugs Forum: 4-H2PO4-DMT; Erowid: Psilocybin & Psilocin; TiHKAL • info: 4-H2PO4-DMT; Wikipedia: Psilocybin
3D rendering of 4-HO-DMT
4-HO-DMT† 
CA: CDSA Schedule III Section 11 Psilocin
UK: MDA Part I Class A Section 1(a) Psilocin
UN: Psychotropics Schedule I Psilocine (Psilotsin)
US: CSA Schedule I Section d Subsection 30 Psilocyn
⇒
PubChem: 4980; ChemSpider: 4807; Bluelight: 4-HO-DMT; Drugs Forum: 4-HO-DMT; Erowid: Psilocybin & Psilocin; TiHKAL • info: 4-HO-DMT; Wikipedia: Psilocin
3D rendering of 4-MA
4-MA† 
CA: CDSA Schedule I Section 19 Subsection 6 4-Methoxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 7 4-Methoxyamphetamine
UK: MDA Part I Class A Section 1(c) 4-Methoxyamphetamine
UN: Psychotropics Schedule I PMA
US: CSA Schedule I Section d Subsection 7 4-Methoxyamphetamine
⇒
PubChem: 31721; ChemSpider: 29417; Bluelight: PMA; Drugs Forum: PMA; Erowid: PMA; PiHKAL • info: 4-MA; Wikipedia: para-Methoxyamphetamine
3D rendering of 4-MEC
4-MEC
US: CSA Schedule I Section h Subsection 11 4-Methyl-N-ethylcathinone
⇒
PubChem: 52988259; ChemSpider: 25630091; Drugs Forum: (4-MEC); Erowid: 4-Methylethcathinone (4-MEC); Wikipedia: 4-Methylethcathinone
3D rendering of 4-MePPP
4-MePPP
US: CSA Schedule I Section h Subsection 12 4-Methyl-alpha-pyrrolidinopropiophenone
⇒
PubChem: 6430745; ChemSpider: 4936084; Wikipedia: 4′-Methyl-α-pyrrolidinopropiophenone
3D rendering of 4-MTA
4-MTA
UK: MDA Part I Class A Section 1(ba) α-Methyl-4-(methylthio)phenethylamine
UN: Psychotropics Schedule I 4-MTA
⇒
PubChem: 151900; ChemSpider: 133883; Erowid: 4-MTA; Wikipedia: 4-Methylthioamphetamine
3D rendering of 5-APB
5-APB† 
UK: MDA Part II Class B Section 1(e) 1-(Benzofuran-5-yl)-propan-2-amine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(Benzofuran-5-yl)-propan-2-amine
⇒
PubChem: 9837232; ChemSpider: 8012953; Drugs Forum: 5-APB; Wikipedia: 5-APB
3D rendering of 5-APDB
5-APDB† 
UK: MDA Part II Class B Section 1(e) 1-(2,3-Dihydro-1-benzofuran-5-yl)-propan-2-amine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(2,3-Dihydro-1-benzofuran-5-yl)-propan-2-amine
⇒
PubChem: 192601; ChemSpider: 167143; Drugs Forum: 5-APDB; Wikipedia: 5-APDB
3D rendering of 5-API
5-API† 
EU: Substances Substances 5-(2-Aminopropyl)indole
UK: MDA Part II Class B Section 1(e) 1-(1H-Indol-5-yl)-1-methylethylamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(1H-Indol-5-yl)-1-methylethylamine
⇒
PubChem: 55253543; ChemSpider: 25991467; Erowid: 5-IT (5-(2-Aminopropyl)indole); Wikipedia: 5-(2-Aminopropyl)indole
3D rendering of 5F-AKB48
5F-AKB48
CA: CDSA Schedule II Section 2 Subsection 8 N-(Adamantan-1-yl)-1-(5-fluoropentyl)-1H-indazole-3-carboxamide
⇒
PubChem: 71711119; ChemSpider: 29339965; Drugs Forum: 5F-AKB48
3D rendering of 5F-PB-22
5F-PB-22
CA: CDSA Schedule II Section 2 Subsection 7 1-(5-Fluoropentyl)-8-quinolinyl ester-1H-indole-3-carboxylic acid
US: CSA Schedule I Section h Subsection 8 Quinolin-8-yl 1-(5-fluoropentyl)-1H-indole-3-carboxylate
⇒
PubChem: 72710774; ChemSpider: 29341631; Drugs Forum: 5F-PB-22; Wikipedia: 5F-PB-22
3D rendering of 5F-UR-144
5F-UR-144
CA: CDSA Schedule II Section 2 Subsection 6 [1-(5-Fluoro-pentyl)-1H-indol-3-yl](2,2,3,3-tetramethylcyclopropyl)-methanone
UK: MDA Part II Class B Section 1(c) XLR11
US: CSA Schedule I Section h Subsection 2 [1-(5-Fluoro-pentyl)-1H-indol-3-yl](2,2,3,3-tetramethylcyclopropyl)methanone
US: [proposed] CSA Schedule I Section g Subsection 17 [1-(5-Fluoro-pentyl)-1H-indol-3-yl](2,2,3,3-tetramethylcyclopropyl)methanone
⇒
PubChem: 57501498; ChemSpider: 28537382; Bluelight: XLR11; Wikipedia: XLR-11 (drug)
3D rendering of 5-HO-DMT
5-HO-DMT† 
UK: MDA Part I Class A Section 1(a) Bufotenine
US: CSA Schedule I Section d Subsection 17 Bufotenine
⇒
PubChem: 10257; ChemSpider: 9839; Bluelight: 5-HO-DMT; Drugs Forum: Bufotenin; Erowid: Bufotenin; TiHKAL • info: 5-HO-DMT; Wikipedia: Bufotenin
3D rendering of 5-IT
5-IT† 
EU: Substances Substances 5-(2-Aminopropyl)indole
UK: MDA Part II Class B Section 1(e) 1-(1H-Indol-5-yl)-1-methylethylamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(1H-Indol-5-yl)-1-methylethylamine
⇒
PubChem: 55253543; ChemSpider: 25991467; Erowid: 5-IT (5-(2-Aminopropyl)indole); Wikipedia: 5-(2-Aminopropyl)indole
3D rendering of 5-MeO-DMT
5-MeO-DMT† 
UK: MDA Part I Class A Section 1(b) 5-Methoxy-N,N-dimethyltryptamine
US: CSA Schedule I Section d Subsection 15 5-Methoxy-N,N-dimethyltryptamine
⇒
PubChem: 1832; ChemSpider: 1766; Bluelight: 5-MeO-DMT; Drugs Forum: 5-MeO-DMT; Erowid: 5-MeO-DMT; TiHKAL • info: 5-MeO-DMT; Wikipedia: 5-MeO-DMT
3D rendering of 6-APB
6-APB† 
UK: MDA Part II Class B Section 1(e) 1-(Benzofuran-6-yl)-propan-2-amine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(Benzofuran-6-yl)-propan-2-amine
⇒
PubChem: 9794343; ChemSpider: 7970110; Bluelight: 6-APB; Drugs Forum: 6-APB; Erowid: 6-APB; Wikipedia: 6-APB
3D rendering of 6-APDB
6-APDB† 
UK: MDA Part II Class B Section 1(e) 1-(2,3-Dihydro-1-benzofuran-6-yl)-propan-2-amine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(2,3-Dihydro-1-benzofuran-6-yl)-propan-2-amine
⇒
PubChem: 192599; ChemSpider: 167141; Wikipedia: 6-APDB
3D rendering of 6-IT
6-IT† 
UK: MDA Part II Class B Section 1(e) 1-(1H-Indol-6-yl)-1-methylethylamine
UK: [revoked] MDA Temporary Class Drug Orders 2013 1-(1H-Indol-6-yl)-1-methylethylamine
11 March 2016 · Creative Commons BY-NC-SA ·