(1S,4R,4aS,8S,8aS,10S)-8,10-bis(((tert-butyldimethylsilyl)oxy)methyl)-8,10-difluoro-4,4a,8,8a-tetrahydro-1,4-ethanonaphthalene-7,9(1H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 1420231-33-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,0,2,3 and 1 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 1420231-33: (9*1)+(8*4)+(7*2)+(6*0)+(5*2)+(4*3)+(3*1)+(2*3)+(1*3)=89 89 % 10 = 9 So 1420231-33-9 is a valid CAS Registry Number.
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