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PHL82542

Fisetin

phyproof® Reference Substance

Synonym(s):

3,3′,4′,7-Tetrahydroxyflavone, 5-Desoxyquercetin, Cotinin, Fiestin, Fietin

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About This Item

Empirical Formula (Hill Notation):
C15H10O6
CAS Number:
Molecular Weight:
286.24
MDL number:
UNSPSC Code:
41116107
NACRES:
NA.24
Pricing and availability is not currently available.

grade

primary reference standard

product line

phyproof® Reference Substance

Assay

≥90.0% (HPLC)

manufacturer/tradename

PhytoLab

application(s)

food and beverages

format

neat

SMILES string

[o]1c2c([c](c(c1c3cc(c(cc3)O)O)O)=O)ccc(c2)O

InChI

1S/C15H10O6/c16-8-2-3-9-12(6-8)21-15(14(20)13(9)19)7-1-4-10(17)11(18)5-7/h1-6,16-18,20H

InChI key

XHEFDIBZLJXQHF-UHFFFAOYSA-N

General description

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

Legal Information

phyproof is a registered trademark of PhytoLab GmbH & Co. KG

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Vanesa A Muñoz et al.
Photochemistry and photobiology, 96(4), 815-825 (2020-01-09)
In this work, the flavonol fisetin was selected in order to study its reactivity against Cu(II), a metal ion of interest in biological media and industry. The stoichiometry and apparent formation constant of the complex in ethanolic medium at 25°C

Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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  3. Can this material be used for sensory evaluation? Experimental Rating: FCC, FG, USP, EP.

    1 answer
    1. This product is not suitable for FCC,FG,USP, or EP applications. It is intended for use as an analytical standard. This product is suitable for research purposes only, not for human or animal subjects, including food and beverage.

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