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(((2R,4aR,6S,7S,8R,8aR)-6-Allyl-7-(allyloxy)-2-(naphthalen-2-yl)hexahydropyrano[3,2-d][1,3]dioxin-8-yl)oxy)tertbutyldimethylsilane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

784157-65-9

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784157-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 784157-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,4,1,5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 784157-65:
(8*7)+(7*8)+(6*4)+(5*1)+(4*5)+(3*7)+(2*6)+(1*5)=199
199 % 10 = 9
So 784157-65-9 is a valid CAS Registry Number.

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