(5aS,6aR,8S,12aS,13aR)-4-(tert-Butyl-dimethyl-silanyloxy)-9-hydroxy-4,6a,8-trimethyl-dodecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cyclooctene-2,11-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 221372-68-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,3,7 and 2 respectively; the second part has 2 digits, 6 and 8 respectively. Calculate Digit Verification of CAS Registry Number 221372-68: (8*2)+(7*2)+(6*1)+(5*3)+(4*7)+(3*2)+(2*6)+(1*8)=105 105 % 10 = 5 So 221372-68-5 is a valid CAS Registry Number.
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