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1257341-65-3

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1257341-65-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257341-65-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,3,4 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1257341-65:
(9*1)+(8*2)+(7*5)+(6*7)+(5*3)+(4*4)+(3*1)+(2*6)+(1*5)=153
153 % 10 = 3
So 1257341-65-3 is a valid CAS Registry Number.

1257341-65-3Relevant articles and documents

NOVEL METHOD FOR PREPARING ROSUVASTATIN, INTERMEDIATE COMPOUNDS USEFUL FOR PREPARING SAME, AND METHOD FOR PREPARING SAME

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Page/Page column 15, (2012/04/23)

The present invention relates to novel intermediate compounds used in preparing Rosuvastatin or the pharmaceutically acceptable salts thereof, to a method for preparing same, and to a method for preparing Rosuvastatin or the pharmaceutically acceptable salts thereof from the intermediates. The preparation method of the present invention has the effect of providing Rosuvastatin hemi-calcium salts with an excellent yield rate.

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