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65539-69-7 Usage


Naphtho-fused furan with a hydroxyl group


Naphtho-fused furan derivative

Functional groups

Furan ring, hydroxyl group


a. Organic synthesis
b. Building block for pharmaceuticals, agrochemicals, and biologically active molecules
c. Production of fragrances and flavoring agents

Biological activities

a. Antitumor properties
b. Anti-inflammatory properties

Industrial and research applications

Due to its unique structure and potential biological effects

Check Digit Verification of cas no

The CAS Registry Mumber 65539-69-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,5,3 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 65539-69:
157 % 10 = 7
So 65539-69-7 is a valid CAS Registry Number.



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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017


1.1 GHS Product identifier

Product name 1,3-dihydrobenzo[f][2]benzofuran-3-ol

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

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

More Details:65539-69-7 SDS

65539-69-7Downstream Products

65539-69-7Relevant articles and documents

The Preparation and Reactions of Naphthofuran and Naphthofuran

Smith, James G.,Dibble, Peter W.,Sandborn, Richard E.

, p. 3762 - 3768 (1986)

The syntheses of 1,3-dihydro-1- and 1,3-dihydro-3-hydroxynaphthofuran are described.Upon treatment with acid, these compounds undergo 1,4-elimination of water to generate the reactive naphthofuran, which is trapped in situ by a variety of dienophiles.Aromatization of the resulting adducts gives access to 2,3-disubstituted phenanthrenes or benzanthracenes.In addition, it has been shown that the hemiacetal, 1,3-dihydro-1-hydroxynaphthofuran, which exists in tautomeric equilibrium with 3-(hydroxymethyl)-2-naphthaldehyde, serves as a convenient source of naphthofuran.This furan can also be trapped by a variety of dienophiles.The resulting Diels-Alder adducts can be aromatized, giving substituted anthracenes.The use of aromatic 1,4-quinones as dienophiles leads to linear polycyclic aromatic quinones of four to seven rings.

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