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946855-77-2

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946855-77-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 946855-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,6,8,5 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 946855-77:
(8*9)+(7*4)+(6*6)+(5*8)+(4*5)+(3*5)+(2*7)+(1*7)=232
232 % 10 = 2
So 946855-77-2 is a valid CAS Registry Number.

946855-77-2Relevant articles and documents

A [...] preparation method and intermediate

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Paragraph 0059-0061, (2018/04/21)

The present invention relates to a preparation method and an intermediate of ticagrelor. The preparation method comprises that a compound represented by a formula VIII and a compound represented by a formula VII or a salt thereof as raw materials to carry out a reaction, and the obtained intermediate is subjected to acetonylidene protection group removing, optionally substituted azobenzene protection group removing, and cyclization, and then reacts with a compound represented by a formula II or a salt thereof to prepare the ticagrelor. The preparation method of the present invention has characteristics of short step, high total yield, mild reaction conditions and simple post-treatment, and is suitable for industrial production.

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