(3S,5R,9S,10R,13S,14S,17R)-3-(tert-Butyl-dimethyl-silanyloxy)-4,4,8,10,14-pentamethyl-17-(5-methyl-1-triethylsilanyloxy-hex-4-enyl)-hexadecahydro-cyclopenta[a]phenanthrene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 128685-71-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,8 and 5 respectively; the second part has 2 digits, 7 and 1 respectively. Calculate Digit Verification of CAS Registry Number 128685-71: (8*1)+(7*2)+(6*8)+(5*6)+(4*8)+(3*5)+(2*7)+(1*1)=162 162 % 10 = 2 So 128685-71-2 is a valid CAS Registry Number.
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