(3aR,4S,7R,7aS)-2,7a-Dimethyl-3,3a,5,6-tetraphenyl-3a,4,7,7a-tetrahydro-4,7-methano-indene-1,8-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 76807-41-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,0 and 7 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 76807-41: (7*7)+(6*6)+(5*8)+(4*0)+(3*7)+(2*4)+(1*1)=155 155 % 10 = 5 So 76807-41-5 is a valid CAS Registry Number.