(5R,6S,8S,9S,10S,11S)-10-Benzoyloxy-8-ethyl-9-hydroxy-5,9,11-trimethyl-1,7-dioxa-spiro[5.5]undecane-3,3-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 99284-88-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,8 and 4 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 99284-88: (7*9)+(6*9)+(5*2)+(4*8)+(3*4)+(2*8)+(1*8)=195 195 % 10 = 5 So 99284-88-5 is a valid CAS Registry Number.
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