C8Cl2N2O2
227 g/mol
Pharmaceutical IntermediateDanger
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone
CAS84-58-2EC201-542-2
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
This compound is a chlorinated dinitrile used as an oxidizing agent in steroid synthesis. It serves as a pharmaceutical intermediate in manufacturing processes.
Oxidizing agent in steroid synthesisPharmaceutical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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pharmaceutical intermediate
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pharmaceutical intermediate
ReferenceSame Category
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pharmaceutical intermediate
ReferenceSame Category
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CAS841-77-0
pharmaceutical intermediate
Referencesame scaffold
2-methyl-1,4-benzoquinone
CAS553-97-9
Chemical intermediate and research compound
Safety Reference
Danger
H301Toxic if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (CAS 84-58-2) is 2926.90.
HS code (international, 6-digit)
2926.90
EU CN code (8-digit)
2926 90 70
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile
InChIKey
HZNVUJQVZSTENZ-UHFFFAOYSA-N
SMILES
C(#N)C1=C(C(=O)C(=C(C1=O)Cl)Cl)C#N
Synonyms (44)
- D-1950
- DDQ
- 1,5-dicyanobenzoquinone
- 2,3-CHLORO-5,6-DICYANOQUINONE
- 2,3-DDQ
- 2,5,6-Dichlorodicyanoquinone
- 2,6-dicyanobenzoquinone
- 2,6-dicyanoquinone
- Dichlorodicyanobenzoquinone
- Dichlorodicyanoquinone
- Dutasteride Impurity 15
- Potassiumhexafluorophosphate
- dichlordicyanobenzoquinone
- dicyanodichlorobenzoquinone
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