(2Z,4Z,6Z,8Z)-Thionine

(2Z,4Z,6Z,8Z)-Thionine
Names
	Preferred IUPAC name (2Z,4Z,6Z,8Z)-Thionine
	Other names Thionine ; Thionin
Identifiers
3D model (JSmol)	Interactive image ;
ChemSpider	10605791 ;
PubChem CID	13287583 ;
CompTox Dashboard (EPA)	DTXSID801045924 ;
	InChI InChI=1S/C8H8S/c1-2-4-6-8-9-7-5-3-1/h1-8H Key: KUUVQVSHGLHAKZ-UHFFFAOYSA-N;
	SMILES C1=CC=CSC=CC=C1;
Properties
Chemical formula	C8H8S
Molar mass	136.21 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Last updated January 04, 2026

(2Z,4Z,6Z,8Z)-Thionine or Thionine is an unsaturated heterocycle of nine atoms, with a sulfur replacing a carbon at one position. Thionine is a partially aromatic compound.^[1]

References

↑ 12.27 Nine-Membered Rings, D. O. Tymoshenko

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[1] 12.27 Nine-Membered Rings, D. O. Tymoshenko

[1]

Names

Preferred IUPAC name (2Z,4Z,6Z,8Z)-Thionine
Other names Thionine Thionin
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	10605791 ^Y
PubChem CID	13287583
CompTox Dashboard (EPA)	DTXSID801045924
InChI InChI=1S/C8H8S/c1-2-4-6-8-9-7-5-3-1/h1-8H Key: KUUVQVSHGLHAKZ-UHFFFAOYSA-N
SMILES C1=CC=CSC=CC=C1
Properties
Chemical formula	C₈H₈S
Molar mass	136.21 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

(2Z,4Z,6Z,8Z)-Thionine

See also

References