Ethylflualprazolam

Ethylflualprazolam
Identifiers
	IUPAC name 8-Chloro-1-ethyl-6-(2-fluorophenyl)-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepine;
ChemSpider	133330355;
Chemical and physical data
Formula	C18H14ClFN4
Molar mass	340.79 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES ClC1=CC=C2C(C(C3=CC=CC=C3F)=NCC4=NN=C(CC)N42)=C1;
	InChI InChI=InChI=1S/C18H14ClFN4/c1-2-16-22-23-17-10-21-18(12-5-3-4-6-14(12)20)13-9-11(19)7-8-15(13)24(16)17/h3-9H,2,10H2,1H3; Key:SRZYAHVJONICNV-UHFFFAOYSA-N;

Ethylflualprazolam is a benzodiazepine derivative^[1] which has been sold as a designer drug. It is structurally similar to flualprazolam, only differing by the addition of an ethyl group instead of a methyl group on the triazole ring. Ethylflualprazolam was first detected in samples tested in Toronto, Canada in December 2025 in expected fentanyl samples.^[2] It has since been detected by CanTEST in March 2026 in expected alprazolam 'Xanax' and 'RO39' pills.^[3]

ChemSpider

133330355

FormulaC₁₈H₁₄ClFN₄

Molar mass340.79 g·mol⁻¹

3D model (JSmol)

Interactive image

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Ethylflualprazolam

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Identifiers

IUPAC name 8-Chloro-1-ethyl-6-(2-fluorophenyl)-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepine
ChemSpider	133330355
Chemical and physical data
Formula	C₁₈H₁₄ClFN₄
Molar mass	340.79 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES ClC1=CC=C2C(C(C3=CC=CC=C3F)=NCC4=NN=C(CC)N42)=C1
InChI InChI=InChI=1S/C18H14ClFN4/c1-2-16-22-23-17-10-21-18(12-5-3-4-6-14(12)20)13-9-11(19)7-8-15(13)24(16)17/h3-9H,2,10H2,1H3 Key:SRZYAHVJONICNV-UHFFFAOYSA-N