(E)-(2S,3R)-2-[(3S,4S,5S,8S,9S,10R,13S,14S,17R)-3-(tert-Butyl-dimethyl-silanyloxy)-4,10,13-trimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-4-methyl-hex-4-en-3-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 81409-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,0 and 9 respectively; the second part has 2 digits, 3 and 4 respectively. Calculate Digit Verification of CAS Registry Number 81409-34: (7*8)+(6*1)+(5*4)+(4*0)+(3*9)+(2*3)+(1*4)=119 119 % 10 = 9 So 81409-34-9 is a valid CAS Registry Number.
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