(3S,5R,8S,9S,10R,13S,14R,15S)-3-(tert-Butyl-dimethyl-silanyloxy)-4,4,8,10-tetramethyl-hexadecahydro-cyclopropa[14,15]cyclopenta[a]phenanthren-16-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 128685-69-8 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, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 128685-69: (8*1)+(7*2)+(6*8)+(5*6)+(4*8)+(3*5)+(2*6)+(1*9)=168 168 % 10 = 8 So 128685-69-8 is a valid CAS Registry Number.
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