Benzoic acid (3S,3aS,3bR,7aR)-2,2,3b-trimethyl-7-oxo-2,3,3a,3b,4,5,7,7a-octahydro-1H-cyclopenta[a]pentalen-3-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 87902-19-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,0 and 2 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 87902-19: (7*8)+(6*7)+(5*9)+(4*0)+(3*2)+(2*1)+(1*9)=160 160 % 10 = 0 So 87902-19-0 is a valid CAS Registry Number.