The CAS Registry Mumber 121658-88-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,5 and 8 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 121658-88: (8*1)+(7*2)+(6*1)+(5*6)+(4*5)+(3*8)+(2*8)+(1*8)=126 126 % 10 = 6 So 121658-88-6 is a valid CAS Registry Number.
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Get Best Price for121658-88-6(13aalpha,13balpha)-8-Acetyl-13a-ethyl-2,3,5,6,13a,13b-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylic acid hexyl ester