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135054-71-6

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135054-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135054-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,0,5 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 135054-71:
(8*1)+(7*3)+(6*5)+(5*0)+(4*5)+(3*4)+(2*7)+(1*1)=106
106 % 10 = 6
So 135054-71-6 is a valid CAS Registry Number.

135054-71-6Relevant articles and documents

4-hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters and a process for their preparation

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, (2008/06/13)

4-Hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters, process for their preparation, their use as pharmaceuticals, and pharmaceutical preparations and precursors. Compounds of the formula I STR1 and the corresponding open-chain dihydroxycarboxylic acids of the formula II STR2 in which X, Y, R1, R2, R3, R4 and R5 have the meanings indicated, and also their pharmacologically tolerable salts with bases and their pharmacologically tolerable esters, processes for the preparation of these compounds, their use as pharmaceuticals and pharmaceutical preparations are described. In addition, compounds of the formula III STR3 in which R1, R2, R3, R4, R5, X and Y have the meanings indicated are described.

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