(3aR,5aR,8aR,10aR)-9-tert-Butyl-2,7-dimethoxy-2,3,7,8-tetrahydro-10aH-furo[2,3-b]furo[3',2':2,3]cyclopenta[1,2-c]furan-4-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 111436-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,4,3 and 6 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 111436-74: (8*1)+(7*1)+(6*1)+(5*4)+(4*3)+(3*6)+(2*7)+(1*4)=89 89 % 10 = 9 So 111436-74-9 is a valid CAS Registry Number.
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