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1141487-07-1

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1141487-07-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1141487-07-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,1,4,8 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1141487-07:
(9*1)+(8*1)+(7*4)+(6*1)+(5*4)+(4*8)+(3*7)+(2*0)+(1*7)=131
131 % 10 = 1
So 1141487-07-1 is a valid CAS Registry Number.

1141487-07-1Relevant articles and documents

METHOD OF PREPARING MONTELUKAST AND INTERMEDIATES USED THEREIN

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Page/Page column 8-9, (2008/12/06)

The present invention relates to a method for preparing montelukast, an inhibitor against leukotrienes, and an intermediate used therein. According to the inventive method, high-purity montelukast or its sodium salt can be prepared in a high yield.

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