70977-84-3 Usage
Preparation
Preparation by catalytic hydrogenation of 5-fluoro2-hydroxy-3-nitroacetophenone in the presence of 5% Pd/C in ethanol at 25°(99%).
Check Digit Verification of cas no
The CAS Registry Mumber 70977-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,7 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70977-84:
(7*7)+(6*0)+(5*9)+(4*7)+(3*7)+(2*8)+(1*4)=163
163 % 10 = 3
So 70977-84-3 is a valid CAS Registry Number.
70977-84-3Relevant articles and documents
Benzopyran derivatives having leukotriene-antagonistic action
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, (2008/06/13)
The present invention relates to novel 4-oxo-4H-1-benzopyran compounds containing benzyloxymethyl, 3-phenylpropyl, or other araliphatic substituents in their 8-position. These compounds show a leukotriene-antagonistic activity. The compounds are characterized by good oral adsorption. The compounds of the present invention may be used as anti-inflammatory and antiallergic medicaments, and in the treatment of cardiovascular diseases.