2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%

About 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%

2,3-Dichloro-5,6-dicyano-p-benzoquinone is a synthetic reagent in Synthesis grade carrying the CAS registry number 84-58-2 with a typical assay of 98%. The compound has the formula C8Cl2N2O2, corresponding to a molecular weight of 227.0 g/mol. The IUPAC name is 4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile. Alternative names: DDQ and 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone.

It is supplied as a powder to solid yellow to orange powder. Key physical data: a melting point of 210-215 °C (dec.). Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis, reaction development and medicinal chemistry. Typical end-use sectors are academic and industrial research.

Standard pack sizes are 10 g, 25 g, 100 g and 500 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry

Industries

Specifications & identifiers

Chemical identifiers
Product name	2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%
Catalogue No.	VQ-000798
CAS Number	84-58-2
IUPAC name	4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile
Molecular formula	C₈Cl₂N₂O₂
Molecular weight	227 g/mol
Exact mass	225.9337
Grade	Synthesis
Purity / assay	98%
HSN code	29269000
InChIKey	HZNVUJQVZSTENZ-UHFFFAOYSA-N
SMILES	C(#N)C1=C(C(=O)C(=C(C1=O)Cl)Cl)C#N
PubChem CID	6775

Physical properties
Physical form	Powder
Appearance	Powder to solid yellow to orange powder
Melting point	210-215 °C (dec.)
LogP (XLogP3)	1.6
H-bond donors / acceptors	0 / 4
TPSA	81.7 Å²
UN number	UN 3439
Synonyms	4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile, DDQ, 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone, Dichlorodicyanobenzoquinone, 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 2,3-Dichloro-5,6-dicyanobenzoquinone, Dichlorodicyano-p-benzoquinone, 2,3-Dichloro-5,6-dicyanoquinone, 2,3-Dichloro-5,6-dicyano-p-quinone, 2,3-Dicyano-5,6-dichlorobenzoquinone, 2,3-Dicyano-5,6-dichloro-1,4-benzoquinone, 5,6-Dichloro-2,3-dicyano-p-benzoquinone

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation

Precautionary statements: P261, P264, P264 + P265, P270, P272, P280, P301 + P316, P302 + P352, P305 + P351 + P338, P321, P330, P333 + P317, P337 + P317, P362 + P364, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%?

The CAS Registry Number of 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% is 84-58-2. It is also known as 4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile, DDQ, 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone.

What is the molecular formula and molecular weight of 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%?

2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% has the molecular formula C8Cl2N2O2 and a molecular weight of 227 g/mol. Its IUPAC name is 4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile.

Which grade and pack sizes of 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% can I order?

We supply 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% in Synthesis (98%) grade, in 10 g, 25 g, 100 g, 500 g, 1 kg, 5 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98%?

Yes. Every lot of 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% be shipped internationally?

Yes. 2,3-Dichloro-5,6-dicyano-p-benzoquinone, 98% is classified as hazardous (UN 3439), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.