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936847-59-5

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936847-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 936847-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,6,8,4 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 936847-59:
(8*9)+(7*3)+(6*6)+(5*8)+(4*4)+(3*7)+(2*5)+(1*9)=225
225 % 10 = 5
So 936847-59-5 is a valid CAS Registry Number.

936847-59-5Relevant articles and documents

METHOD OF PREPARING(3R,5R)-7-(2-(4-FLUOROPHENYL)-5-ISOPROPYL-3-PHENYL-4-((4-HYDROXYMETHYLPHENYLAMINO)CARBONYL)-PYRROL-1-YL)-3,5-DIHYDROXY-HEPTANOIC ACID HEMI CALCIUM SALT, AND METHOD OF PREPARING INTERMEDIATES USED THEREIN

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Paragraph 0079; 0083-0086, (2021/02/05)

The present invention provides a method for preparing (3R,5R)-7-(2-(4-flurophenyl)-5-isopropyl-3-phenyl-4-((4-hydroxymethylphenylamino)carbonyl)-pyrrole-1-yl)-3,5-dihydroxy heptanoic acid hemicalcium salt. The preparation method of the present invention is performed in a convergent synthesis manner in which main structural moieties of a (3R,5R)-7-(2-(4-flurophenyl)-5-isopropyl-3-phenyl-4-((4-hydroxymethylphenylamino)carbonyl)-pyrrole-1-yl)-3,5-dihydroxy heptanoic acid hemicalcium salt are independently synthesized, and then coupled. Accordingly, related substances can be easily controlled and preparing time can be reduced, thus improving the productivity of a compound, and the yield of a final compound can also be increased.

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