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87221-48-5

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87221-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87221-48-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87221-48:
(7*8)+(6*7)+(5*2)+(4*2)+(3*1)+(2*4)+(1*8)=135
135 % 10 = 5
So 87221-48-5 is a valid CAS Registry Number.

87221-48-5Downstream Products

87221-48-5Relevant articles and documents

Syntheses and antiinflammatory activity of some 6-aryl-2,3,4,5-tetrahydro-3-pyridazinones

Khan,Siddiqui

, p. 614 - 619 (2007/10/03)

6-Aryl-2, 3, 4, 5-tetrahydro-3-pyridazinones (2c-22c) are obtained by dehydrocyclisation of various hydrazides formed by the reaction of appropriate methyl β-aroylpropionate and hydrazine hydrate in the presence of anhydrous sodium acetate. They show promising antiinflammatory activity during their evaluation by carrageenin induced paw edema test in rats.

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