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117837-43-1

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117837-43-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117837-43-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,3 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117837-43:
(8*1)+(7*1)+(6*7)+(5*8)+(4*3)+(3*7)+(2*4)+(1*3)=141
141 % 10 = 1
So 117837-43-1 is a valid CAS Registry Number.

117837-43-1Downstream Products

117837-43-1Relevant articles and documents

The Addition Reaction of Acetals to Activated Olefins under Extremely Mild Conditions

Mukaiyama, Teruaki,Wariishi, Koji,Saito, Yoshikazu,Hayashi, Masaji,Kobayashi, Shu

, p. 1101 - 1104 (2007/10/02)

In the presence of catalytic amounts of trimethylsilyl chloride and tin(II) chloride, or trytil chloride and tin(II) triflate, activated olefins smoothly react with acetals to afford the corresponding adducts in good yields.

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