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Merck

H23805

Sigma-Aldrich

4-Hydroxycoumarin

98%

Sinónimos:

4-Hydroxy-1-benzopyran-2-one

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100 G
MXP 1,526.00
500 G
MXP 4,276.00

MXP 1,526.00


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100 G
MXP 1,526.00
500 G
MXP 4,276.00

About This Item

Fórmula empírica (notación de Hill):
C9H6O3
Número de CAS:
Peso molecular:
162.14
Beilstein:
129768
Número CE:
Número MDL:
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
NACRES:
NA.22

MXP 1,526.00


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Nivel de calidad

Ensayo

98%

mp

211-213 °C (lit.)

fluorescencia

λem 373 nm in methanol

cadena SMILES

OC1=CC(=O)Oc2ccccc12

InChI

1S/C9H6O3/c10-7-5-9(11)12-8-4-2-1-3-6(7)8/h1-5,10H

Clave InChI

VXIXUWQIVKSKSA-UHFFFAOYSA-N

Información sobre el gen

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Pictogramas

Exclamation mark

Palabra de señalización

Warning

Frases de peligro

Clasificaciones de peligro

Acute Tox. 4 Oral

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves


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Ian A Nicholls et al.
Journal of molecular recognition : JMR, 23(6), 604-608 (2010-10-30)
The complex nature of the structure of the anticoagulant warfarin is reflected in the diversity of binding modes observed in warfarin-protein recognition systems. A series of theoretical, (1)H-NMR and steady state and time resolved fluorescence spectroscopic studies, have been used
Ayoob Bazgir et al.
Ultrasonics sonochemistry, 17(2), 447-452 (2009-10-20)
A simple, facile, efficient and three-component procedure for the synthesis of spiro[indoline-3,4'-pyrazolo[3,4-b]pyridine]-2,6'(1'H)-diones by the reaction of 4-hydroxycumarin, isatins and 1H-pyrazol-5-amines in water under ultrasonic irradiation is reported. The advantages of this method are the use of an inexpensive and readily
Karen A Nolan et al.
Journal of medicinal chemistry, 52(22), 7142-7156 (2009-11-03)
The synthesis is reported here of two novel series of inhibitors of human NAD(P)H quinone oxidoreductase-1 (NQO1), an enzyme overexpressed in several types of tumor cell. The first series comprises substituted symmetric dicoumarol analogues; the second series contains hybrid compounds
Katrin J Czogalla et al.
Blood, 122(15), 2743-2750 (2013-08-29)
Since the discovery of warfarin-sensitive vitamin K 2,3-epoxide reductase complex subunit 1 (VKORC1), 26 human VKORC1 (hVKORC1) missense mutations have been associated with oral anticoagulant resistance (OACR). Assessment of warfarin resistance using the "classical" dithiothreitol-driven vitamin K 2,3-epoxide reductase (VKOR)
Mikael I Naumov et al.
The Journal of organic chemistry, 72(9), 3293-3301 (2007-03-29)
2-(methoxymethoxymethyl)aryllead triacetates, obtained in situ from the corresponding arylboronic acids, reacted with 4-hydroxycoumarins, leading to 3-(2-methoxymethoxymethyl)aryl-4-hydroxycoumarin derivatives in good to high yields. These compounds underwent a cascade sequence of reactions, deprotection-halogenation-annulation, to afford polyoxygenated tetracyclic 6H,11H-[2]benzopyrano-[4,3-c] [1]benzopyran-11-ones in good yields.

Questions

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  1. 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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  2. 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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