(1R,4S,4aS,5R,6S,8aR)-5-(tert-Butyl-dimethyl-silanyloxy)-1,2,3,4-tetrachloro-9,9-dimethoxy-6-methyl-8-trimethylsilanyloxy-1,4,4a,5,6,8a-hexahydro-1,4-methano-naphthalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 188557-50-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,5 and 7 respectively; the second part has 2 digits, 5 and 0 respectively. Calculate Digit Verification of CAS Registry Number 188557-50: (8*1)+(7*8)+(6*8)+(5*5)+(4*5)+(3*7)+(2*5)+(1*0)=188 188 % 10 = 8 So 188557-50-8 is a valid CAS Registry Number.
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