(3R,3aR,4S,7S,7aS)-7a-Acetyl-3-benzyloxymethyl-7-[(E)-3-(tert-butyl-dimethyl-silanyloxy)-propenyl]-4-methyl-5-trimethylsilanylmethyl-2,3,3a,4,7,7a-hexahydro-isoindol-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 107657-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,6,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 107657-91: (8*1)+(7*0)+(6*7)+(5*6)+(4*5)+(3*7)+(2*9)+(1*1)=140 140 % 10 = 0 So 107657-91-0 is a valid CAS Registry Number.
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