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1,4-Ethano-3H-2-benzopyran-3-one, 1,4-dihydro-, also known as 7-Hydroxycoumarin, is a chemical compound with the molecular formula C10H8O3. It is a derivative of coumarin, a naturally occurring organic compound found in plants. 1,4-Ethano-3H-2-benzopyran-3-one, 1,4-dihydro- is characterized by a benzopyran ring structure with a hydroxyl group at the 7th position and an ethano bridge connecting the 1st and 4th carbon atoms. 7-Hydroxycoumarin is an important intermediate in the synthesis of various pharmaceuticals, such as anticoagulants and antiplatelet agents, due to its ability to inhibit blood clotting. It is also used as a starting material for the production of other coumarin derivatives with potential applications in the fragrance, flavor, and agrochemical industries.

4708-20-7

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4708-20-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4708-20-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,0 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4708-20:
(6*4)+(5*7)+(4*0)+(3*8)+(2*2)+(1*0)=87
87 % 10 = 7
So 4708-20-7 is a valid CAS Registry Number.

4708-20-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,4-Ethano-3H-2-benzopyran-3-one, 1,4-dihydro-

1.2 Other means of identification

Product number -
Other names -

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

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More Details:4708-20-7 SDS

4708-20-7Downstream Products

4708-20-7Relevant academic research and scientific papers

REACTION OF SINGLET OXYGEN WITH AZINES: IMPLICATIONS FOR DIOXIRANE INTERMEDIATE

Ando, Wataru,Sato, Rikiya,Sonobe, Hideki,Akasaka, Takeshi

, p. 853 - 856 (1984)

Photooxygenation of tricyclodecanone azine (adamantanone azine) afforded, in addition to adamantanone, 4-oxohomoadamantan-5-one derived from a dioxirane intermediate via a non-radical pathway.

SINGLET OXYGEN AND TRIAZOLINEDIONE ADDITION TO AZINES

Sato, Rikiya,Sonobe, Hideki,Akasaka, Takeshi,Ando, Wataru

, p. 5273 - 5280 (2007/10/02)

Photooxygenation of azines, i.e., adamantanone azine (1) and benzonorborn-7-one azine (4), afforded in addition to the corresponding ketones, lactones derived from a carbonyl oxide intermediate via an electron transfer pathway.On the other hand, 4-substitued-1,2,4-triazoline-3,5-diones (TAD) react with azine 1 to give a 1,3-dipole, an azomethinimine intermediate as nitrogen analogue of a carbonyl oxide, which afforded the -cycloadducts in treatment with dipolarophiles.The mechanistic implications are discussed.

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