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125404-41-3

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125404-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125404-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,4,0 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 125404-41:
(8*1)+(7*2)+(6*5)+(5*4)+(4*0)+(3*4)+(2*4)+(1*1)=93
93 % 10 = 3
So 125404-41-3 is a valid CAS Registry Number.

125404-41-3Relevant articles and documents

The reaction of ketene-iminium ions with various olefins: A new preparation method for grandisol, fragranol and related dimethyl ethers

Grandguillot,Rouessac

, p. 5133 - 5148 (2007/10/02)

We describe here the preparation of grandisol, fragranol and several related cyclobutanic by-products by procedures employing a [2+2] cycloaddition reaction between an olefine and a ketene-iminium cation generated in situ from an α-chloroenamine. The region- and stereospecificity of these cyclization reactions are studied.

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