135911-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135911-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,1 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 135911-98:
(8*1)+(7*3)+(6*5)+(5*9)+(4*1)+(3*1)+(2*9)+(1*8)=137
137 % 10 = 7
So 135911-98-7 is a valid CAS Registry Number.