This product is supplied as a faint yellow to very dark yellow or faint green to very dark green powder. The exact color appearance is listed on the lot specific Certificate of Analysis:
https://www.sigmaaldrich.com/product/sial/b10358#product-documentation
B10358
p-Benzoquinone
reagent grade, ≥98%, powder or crystals
Greener Alternative
Synonym(s):
Quinone
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| Size/SKU | Availability | Price |
|---|---|---|
5 g | Available to ship TODAYfromMILWAUKEE | $34.00 |
100 g | Available to ship TODAYfromMILWAUKEE | $53.70 |
500 g | Available to ship TODAYfromMILWAUKEE | $149.00 |
1 kg | Check Cart for Availability | $207.00 |
About This Item
Linear Formula:
C6H4(=O)2
CAS Number:
Molecular Weight:
108.09
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352005
EC Number:
203-405-2
MDL number:
Beilstein/REAXYS Number:
773967
Assay:
≥98%
Form:
powder or crystals
$34.00
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Product Name
p-Benzoquinone, reagent grade, ≥98%
biological source
synthetic
Quality Segment
grade
reagent grade
vapor density
3.73 (vs air)
vapor pressure
0.1 mmHg ( 25 °C)
assay
≥98%
form
powder or crystals
autoignition temp.
815 °F
greener alternative product characteristics
Catalysis
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
mp
113-115 °C (lit.)
solubility
water: soluble 14.7 g/L at 20 °C
functional group
ketone
greener alternative category
storage temp.
room temp
SMILES string
O=C1C=CC(=O)C=C1
InChI
1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H
InChI key
AZQWKYJCGOJGHM-UHFFFAOYSA-N
Gene Information
human ... ACHE(43), BCHE(590), CES1(1066)
General description
Free radical inhibitor
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.
p-Benzoquinone (PBQ) is a cyclic conjugated diketone. Its high-resolution photoelectron spectrum has been reported. The visible and near ultraviolet spectra of PBQ have been recorded and analyzed. Its addition as coagent has been reported to enhance the crosslinking rate of polypropylene initiated by the pyrolysis of peroxides. Its impact on hemoglobin (Hb) has been investigated based on immunoblots and mass spectral analysis of a smoker′s blood.
Application
Oxidant used in first step of greener amine synthesis from terminal olefins by Wacker oxidation followed by transfer hydrogenation of the resultant imine.
Formal anti-Markovnikov hydroamination of terminal olefins
Formal anti-Markovnikov hydroamination of terminal olefins
p-Benzoquinone may be used to form benzofuranone derivatives on reacting with anilides of β-aminocrotonic acids via Nenitzescu reaction.
Dienophile employed in Diels-Alder cycloadditions to form naphthoquinones, and 1,4-phenanthrenediones.
1 of 1
This Item | |||
|---|---|---|---|
| description reagent grade, ≥98% | description United States Pharmacopeia (USP) Reference Standard | description for spectrophotometric det. of amines, ≥99.5% (HPLC) | description Pharmaceutical Secondary Standard; Certified Reference Material |
| assay ≥98% | assay - | assay ≥99.5% (HPLC) | assay - |
| solubility water: soluble 14.7 g/L at 20 °C | solubility - | solubility - | solubility - |
| Quality Level 200 | Quality Level - | Quality Level 200 | Quality Level 300 |
| mp 113-115 °C (lit.) | mp 113-115 °C (lit.) | mp 112-114 °C, 113-115 °C (lit.) | mp 113-115 °C (lit.) |
| storage temp. room temp | storage temp. - | storage temp. - | storage temp. 2-8°C |
| form powder or crystals | form - | form powder or crystals | form - |
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Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Sol. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3
target_organs
Respiratory system
Storage Class
4.1B - Flammable solid hazardous materials
wgk
WGK 3
flash_point_f
170.6 °F - closed cup
flash_point_c
77 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
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이 powder의 색깔이 뭘까요?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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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