(7R,8R,9S,10R,13S,14S,17S)-17-(tert-Butyl-dimethyl-silanyloxy)-7-(5-hydroxy-pentyl)-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 205698-11-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,6,9 and 8 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 205698-11: (8*2)+(7*0)+(6*5)+(5*6)+(4*9)+(3*8)+(2*1)+(1*1)=139 139 % 10 = 9 So 205698-11-9 is a valid CAS Registry Number.
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