(2R,3S,2'R,3'S)-2,2'-Bis-(3,4-dimethoxy-phenyl)-7,8,5',7'-tetramethoxy-3,4,3',4'-tetrahydro-2H,2'H-[5,8']bichromenyl-3,3'-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 109671-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,6,7 and 1 respectively; the second part has 2 digits, 6 and 8 respectively. Calculate Digit Verification of CAS Registry Number 109671-68: (8*1)+(7*0)+(6*9)+(5*6)+(4*7)+(3*1)+(2*6)+(1*8)=143 143 % 10 = 3 So 109671-68-3 is a valid CAS Registry Number.
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