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177747-94-3

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177747-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177747-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,4 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 177747-94:
(8*1)+(7*7)+(6*7)+(5*7)+(4*4)+(3*7)+(2*9)+(1*4)=193
193 % 10 = 3
So 177747-94-3 is a valid CAS Registry Number.

177747-94-3Relevant articles and documents

SYNTHESIS OF LEUKOTRIENE COMPOUNDS

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, (2008/06/13)

The present invention relates to the synthesis of leukotriene receptor agonist compounds and to novel intermediates employed in their preparation. Leukotriene agonists are used in the treatment of asthma, as well as other conditions mediated by leukotrienes such as inflammation and allergies. A compound of particular interest is montelukast and the present invention describes an improved process for making montelukast and similar compounds.

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