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
Wichtige Dokumente
123447
3,4-Dihydroxy-3-cyclobuten-1,2-dion
≥99.0% (HPLC)
Synonym(e):
‘Quadratsäure’
Größe auswählen
Größe auswählen
About This Item
Empfohlene Produkte
Qualitätsniveau
Assay
≥99.0% (HPLC)
Form
solid
mp (Schmelzpunkt)
>300 °C (lit.)
SMILES String
OC1=C(O)C(=O)C1=O
InChI
1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H
InChIKey
PWEBUXCTKOWPCW-UHFFFAOYSA-N
Suchen Sie nach ähnlichen Produkten? Aufrufen Leitfaden zum Produktvergleich
Verwandte Kategorien
Anwendung
- In fluorescence detection in immunoassays, hybridization assays, enzymatic reactions, and other analytical procedures.[3]
- To form diffraction quality crystals.[4]
- To synthesize a squarate dianion, which is used as a building block to create uncharged polymeric networks. These ordered structures are used in catalysis, nonlinear optics, electrical conductivity, molecular recognition, and molecular sieves.[5]
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Eye Dam. 1 - Skin Corr. 1B
Lagerklassenschlüssel
8A - Combustible corrosive hazardous materials
WGK
WGK 3
Flammpunkt (°F)
374.0 °F
Flammpunkt (°C)
190 °C
Persönliche Schutzausrüstung
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hier finden Sie alle aktuellen Versionen:
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Artikel
Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/449/386/product-dating-information-mk.pdfHelpful?
-
-
What is a good way to derivatize squaric acid
1 answer-
The derivatization of squaric acid has not been investigated. It would be up to the end-user to research this application. It may be helpful to review the following publication:
https://pubs.acs.org/doi/10.1021/ja00959a040Helpful?
-
Active Filters
Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..
Setzen Sie sich mit dem technischen Dienst in Verbindung.
