(8R,9S,10R,13S,14S,17S)-17-(tert-Butyl-dimethyl-silanyloxy)-10,13-dimethyl-6,7,8,9,11,13,14,15,16,17-decahydro-10H-cyclopenta[a]phenanthrene-3,12-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 209972-85-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,7 and 2 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 209972-85: (8*2)+(7*0)+(6*9)+(5*9)+(4*7)+(3*2)+(2*8)+(1*5)=170 170 % 10 = 0 So 209972-85-0 is a valid CAS Registry Number.
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