6-<(1E,3E,5E,7E)-8-<(2S,3R,4S,5R)-3-(tert-butyldimethylsiloxy)tetrahydro-4-hydroxy-2,4,5-trimethyl-2-furyl>-7-methyl-1,3,5,7-octatetraenyl>-4-methoxy-5-methyl-2H-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 111905-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,0 and 5 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 111905-16: (8*1)+(7*1)+(6*1)+(5*9)+(4*0)+(3*5)+(2*1)+(1*6)=89 89 % 10 = 9 So 111905-16-9 is a valid CAS Registry Number.
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