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1239476-35-7

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1239476-35-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239476-35-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,4,7 and 6 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1239476-35:
(9*1)+(8*2)+(7*3)+(6*9)+(5*4)+(4*7)+(3*6)+(2*3)+(1*5)=177
177 % 10 = 7
So 1239476-35-7 is a valid CAS Registry Number.

1239476-35-7Upstream product

1239476-35-7Downstream Products

1239476-35-7Relevant articles and documents

Siloxy(trialkoxy)ethene undergoes regioselective [2+2] cycloaddition to ynones and ynoates en route to functionalized cyclobutenediones

Iwata, Shin,Hamura, Toshiyuki,Suzuki, Keisuke

supporting information; experimental part, p. 5316 - 5318 (2010/11/18)

Regioselective [2+2] cycloaddition of ynones or ynoates to siloxy(trialkoxy)ethene (KSA) is described. A siloxy group on the KSA directs the perfect regioselectivity, allowing rapid construction of various functionalized cyclobutenedione derivatives.

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