(1R,4aS,9R,10aR)-7-Isopropyl-1,4a-dimethyl-9-trimethylsilanyloxy-1,2,3,4,4a,9,10,10a-octahydro-phenanthrene-1-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 104857-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,5 and 7 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 104857-69: (8*1)+(7*0)+(6*4)+(5*8)+(4*5)+(3*7)+(2*6)+(1*9)=134 134 % 10 = 4 So 104857-69-4 is a valid CAS Registry Number.
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