(1'R,1S,2S,2'R,8R,9S,11R,13S,15S,16S)-2-[8,16-bis-(tert-butyl-dimethylsilanyloxy)-7-cyano-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4E,6Z-dien-2-yl]-cyclopentane-1'-carboxylic acid 2-trimethylsilanyl-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 631919-36-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,1,9,1 and 9 respectively; the second part has 2 digits, 3 and 6 respectively. Calculate Digit Verification of CAS Registry Number 631919-36: (8*6)+(7*3)+(6*1)+(5*9)+(4*1)+(3*9)+(2*3)+(1*6)=163 163 % 10 = 3 So 631919-36-3 is a valid CAS Registry Number.
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