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649755-75-9

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649755-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 649755-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,5 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 649755-75:
(8*6)+(7*4)+(6*9)+(5*7)+(4*5)+(3*5)+(2*7)+(1*5)=219
219 % 10 = 9
So 649755-75-9 is a valid CAS Registry Number.

649755-75-9Relevant articles and documents

A practical building block for the synthesis of discodermolide

Loiseleur, Olivier,Koch, Guido,Wagner, Trixie

supporting information, p. 597 - 602 (2013/09/02)

A new highly diastereoselective and practical route to the lactone 6a which is used as a key building block for the total synthesis of the microtubule-stabilizing anticancer agent discodermolide is reported. This exploits the chiral auxiliary (4R)-4-isopr

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