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944269-28-7

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944269-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 944269-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,4,2,6 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 944269-28:
(8*9)+(7*4)+(6*4)+(5*2)+(4*6)+(3*9)+(2*2)+(1*8)=197
197 % 10 = 7
So 944269-28-7 is a valid CAS Registry Number.

944269-28-7Upstream product

944269-28-7Relevant articles and documents

Processes and intermediates for the preparations of prostaglandins

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Page/Page column 9-10, (2008/06/13)

The present invention provides novel processes for the preparation of a cyclopentanone of Formula II and a lactone of Formula I, which are useful in the production of prostaglandins: wherein Z, R2, R3, X1, X2, and are as defined in the specification. The invention also provides novel enantiomerically enriched compounds.

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