(1S,4R,4aR,8R,8aS)-8-(tert-Butyl-dimethyl-silanyloxy)-1,2,3,4-tetrachloro-9,9-dimethoxy-4,4a,8,8a-tetrahydro-1H-1,4-methano-naphthalen-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 188557-49-5 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, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 188557-49: (8*1)+(7*8)+(6*8)+(5*5)+(4*5)+(3*7)+(2*4)+(1*9)=195 195 % 10 = 5 So 188557-49-5 is a valid CAS Registry Number.
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