If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
D60400
2,3-Dichloro-5,6-dicyano-p-benzoquinone
98%
Synonym(s):
4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile, DDQ
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Check Cart for Availability | $35.10 |
10 g | Check Cart for Availability | $62.80 |
100 g | Estimated to ship onOctober 28, 2026fromMILWAUKEE | $285.00 |
About This Item
Quality Segment
assay
98%
form
powder
reaction suitability
reagent type: oxidant
mp
210-215 °C (dec.) (lit.)
storage temp.
2-8°C
SMILES string
ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O
InChI
1S/C8Cl2N2O2/c9-5-6(10)8(14)4(2-12)3(1-11)7(5)13
InChI key
HZNVUJQVZSTENZ-UHFFFAOYSA-N
Application
- A deprotecting reagent for a variety of compounds, such as thioacetals, acetals, and ketals.
- An electron-transfer reagent for the synthesis of quinolines from imines and alkynes or alkenes.
- An effective reagent for the benzylic and allylic C−H functionalization.
- An oxidizing agent for the synthesis of functionalized furans and benzofurans.
- A reagent with Ph3P in an efficient synthesis of 1,2-benzisoxazoles.
1 of 1
This Item | ||
|---|---|---|
| description 98% | description reagent grade, ≥98% | description for spectrophotometric det. of amines, ≥99.5% (HPLC) |
| assay 98% | assay ≥98% | assay ≥99.5% (HPLC) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 |
| reaction suitability reagent type: oxidant | reaction suitability - | reaction suitability - |
| mp 210-215 °C (dec.) (lit.) | mp 113-115 °C (lit.) | mp 112-114 °C, 113-115 °C (lit.) |
| form powder | form powder or crystals | form powder or crystals |
| storage temp. 2-8°C | storage temp. room temp | storage temp. - |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Oral
supp_hazards
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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