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(R)-3-(tert-Butyl-dimethyl-silanyloxy)-5-[2-((2R,7S,10R)-7-isopropyl-10-methyl-1,5-dioxa-spiro[5.5]undec-2-yl)-ethoxy]-pentanoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

218591-59-4

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218591-59-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 218591-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,5,9 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 218591-59:
(8*2)+(7*1)+(6*8)+(5*5)+(4*9)+(3*1)+(2*5)+(1*9)=154
154 % 10 = 4
So 218591-59-4 is a valid CAS Registry Number.

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