(1R,3S,3aS,4aR,8aR,8bS)-3a-(tert-Butyl-dimethyl-silanyloxy)-1-methoxymethoxy-8a-methoxymethoxymethyl-6,8b-dimethyl-2,3,3a,4a,7,8,8a,8b-octahydro-1H-benzo[b]cyclopenta[d]furan-3-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 200421-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,4,2 and 1 respectively; the second part has 2 digits, 2 and 2 respectively. Calculate Digit Verification of CAS Registry Number 200421-22: (8*2)+(7*0)+(6*0)+(5*4)+(4*2)+(3*1)+(2*2)+(1*2)=53 53 % 10 = 3 So 200421-22-3 is a valid CAS Registry Number.
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