1236261-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1236261-57-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,6,2,6 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1236261-57:
(9*1)+(8*2)+(7*3)+(6*6)+(5*2)+(4*6)+(3*1)+(2*5)+(1*7)=136
136 % 10 = 6
So 1236261-57-6 is a valid CAS Registry Number.