Compound
a 1,4-benzosemiquinone
A semiquinone derived from a 1,4-benzoquinone by formal addition of one hydrogen atom with its electron, or from the removal of one hydrogen atom with its electron from a hydroquinone.
Definition from ChEBI (CHEBI:134225), read 2026-09-23. CC BY 4.0.
Structure
- Class
- Structural class, not a single molecule
- Formula
- C6HO2R4
- Mass
- 105.071 g/mol
- Charge
- 0
- SMILES
- [1*]c1c([2*])c(O)c([3*])c([4*])c1[O]
- Look it up
- ChEBI
Identity from ChEBI. Not evidence.
What the reference databases state
Chemical structure
- a 1,4-benzosemiquinone has the functional parent a quinolCompoundChEBI CHEBI:134225Inferred only
- a 1,4-benzosemiquinone has the functional parent a quinoneCompoundChEBI CHEBI:134225Inferred only
Statements
3 statements
3 statements · 1 reference database · Subject: a 1,4-benzosemiquinone · Sources: Rhea
- a 1,4-benzosemiquinone is converted to a quinoneCompoundRhea RHEA:65952Inferred only
- a quinone is converted to a 1,4-benzosemiquinoneCompoundRhea RHEA:14269Inferred only
- a quinone is converted to a 1,4-benzosemiquinoneCompoundRhea RHEA:65952Inferred only
Reactions
2 reactions
2a quinone+NADPH(4-)+hydron2a 1,4-benzosemiquinone+NADP(3-)
Catalysed by CRYZ or TP53I3 or VAT1 or VAT1L
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:14269CC BY 4.0Reference data
2a quinone+NADH(2-)+hydron2a 1,4-benzosemiquinone+NAD(1-)
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:65952CC BY 4.0Reference data
Other names
1 name
Resolves to: a 1,4-benzosemiquinone
- Also called
- p-benzosemiquinones