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1025804-42-5

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1025804-42-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1025804-42-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,5,8,0 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1025804-42:
(9*1)+(8*0)+(7*2)+(6*5)+(5*8)+(4*0)+(3*4)+(2*4)+(1*2)=115
115 % 10 = 5
So 1025804-42-5 is a valid CAS Registry Number.

1025804-42-5Relevant articles and documents

A Convenient Synthesis of Antihyperlipoproteinemic Agent Gemfibrozil

Wang, Hui-Po,Lee, On,Fan, Chin-Tsai,Lee, Lain-Tze

, p. 569 - 572 (2007/10/02)

A new synthesis of antihyperlipoproteinemic agent 2,2-dimethyl-5-(2,5-dimethylphenoxy) pentanoic acid (gemfibrozil, 1) is developed via hydrogenolysis of a novel β-lactone 6, prepared from cycloaddition of 3-(2,5-dimethylphenoxy) propanal with dimethylketene.The mild conditions applied in this process are especially convenient for the preparation of gemfibrozil on an industral scale of production.Key Words Gemfibrozil; 2,2-Dimethyl-5-(2,5-dimethylphenoxy)pentanoic acid; Dimethylketene; cycloaddition; 2,2-Dimethyl-5-(2,5-dimethylphenoxy)-3-hydroxypentanoic acid β-lactone.

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