937389-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 937389-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,7,3,8 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 937389-18:
(8*9)+(7*3)+(6*7)+(5*3)+(4*8)+(3*9)+(2*1)+(1*8)=219
219 % 10 = 9
So 937389-18-9 is a valid CAS Registry Number.
937389-18-9Relevant articles and documents
PROCESS FOR MAKING MONTELUKAST AND INTERMEDIATES THEREFOR
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Page/Page column 36-37, (2008/06/13)
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts thereof: (1) using a compound of formula (11) is provided.
