(1R,3aR,4R,5S,7aS)-5-Isopropyl-1-methanesulfonyloxymethyl-7a-methyl-2,3,3a,4,5,7a-hexahydro-1H-indene-4-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 73540-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 73540-93: (7*7)+(6*3)+(5*5)+(4*4)+(3*0)+(2*9)+(1*3)=129 129 % 10 = 9 So 73540-93-9 is a valid CAS Registry Number.
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