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8H-Furo[3,2-h][1]benzopyran-8-one, also known as 8-oxo-7,8-dihydrobenzopyran-1-one, is a chemical compound with the molecular formula C10H8O3. It is a heterocyclic organic molecule that belongs to the class of benzopyrans, which are derivatives of benzopyran, a fused ring system consisting of a benzene ring and a pyran ring. 8H-Furo[3,2-h][1]benzopyran-8-one is characterized by the presence of a furan ring (a five-membered ring with one oxygen atom) fused to the benzopyran structure, and an additional carbonyl group at the 8-position. 8H-Furo[3,2-h][1]benzopyran-8-one is an important intermediate in the synthesis of various pharmaceuticals and natural products, such as flavonoids and chromones, due to its unique structural features and potential biological activities.

5768-44-5

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5768-44-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5768-44-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,6 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5768-44:
(6*5)+(5*7)+(4*6)+(3*8)+(2*4)+(1*4)=125
125 % 10 = 5
So 5768-44-5 is a valid CAS Registry Number.
InChI:InChI=1/C11H6O3/c12-9-4-3-7-1-2-8-5-6-13-10(8)11(7)14-9/h1-6H

5768-44-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name furo[3,2-h]chromen-8-one

1.2 Other means of identification

Product number -
Other names Pseudoisopsoralen

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5768-44-5 SDS

5768-44-5Downstream Products

5768-44-5Relevant academic research and scientific papers

Efficient and convenient synthesis of angular furanocoumarins from hydroxycoumarins

Harayama, Takashi,Nishita, Yoshitaka

, p. 1986 - 1988 (2007/10/03)

Angular furanocoumarins (1) were synthesized via sequential reactions of vinylation of halo-hydroxycoumarins (5 or 6) with chlorodimethylvinylsilane (8) and Pd catalyst, oxidation of Tl(NO3)3 in methanol, and treatment with acid.

13C-NMR Spectra and Carbon-Proton Coupling Constants of Variously Annulated Furocoumarins

Guiotto, A.,Manzini, P.,Chilin, A.,Pastorini, G.,Rodighiero, P.

, p. 649 - 656 (2007/10/02)

The 13C-nmr spectra of variously annulated methylfurocoumarins are reported.The assignemnts of chemical shifts for all the C resonances has been achieved by using carbon-proton coupling constants, relaxation efficiency considerations and shift effects caused by the introduction of methyl groups at various positions of the furocoumarin nucleus.Substituent effects on 13C chemical shifts and carbon-proton coupling constants are discussed.

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