6a-methyl-3,3a,3b,6,7a-pentaphenyl-(3ar,3br',6ac',7ac)-3a,3b,6a,7a-tetrahydro-cyclopenta[1,2-d;3,4-d']diisoxazol-7-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 71637-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,3 and 7 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 71637-80: (7*7)+(6*1)+(5*6)+(4*3)+(3*7)+(2*8)+(1*0)=134 134 % 10 = 4 So 71637-80-4 is a valid CAS Registry Number.