(4aR,11aS)-4a,7-Dihydroxy-8-isopropyl-1,1-dimethyl-1,2,3,4,4a,10,11,11a-octahydro-dibenzo[a,d]cyclohepten-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 99152-21-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,1,5 and 2 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 99152-21: (7*9)+(6*9)+(5*1)+(4*5)+(3*2)+(2*2)+(1*1)=153 153 % 10 = 3 So 99152-21-3 is a valid CAS Registry Number.