(R)-4-((5R,10S,13R,17R)-4,4,10,13-Tetramethyl-3-oxo-2,3,4,5,6,7,10,11,12,13,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)-pentanal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 287117-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,1,1 and 7 respectively; the second part has 2 digits, 1 and 7 respectively. Calculate Digit Verification of CAS Registry Number 287117-17: (8*2)+(7*8)+(6*7)+(5*1)+(4*1)+(3*7)+(2*1)+(1*7)=153 153 % 10 = 3 So 287117-17-3 is a valid CAS Registry Number.
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