1286838-34-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1286838-34-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,8,3 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1286838-34:
(9*1)+(8*2)+(7*8)+(6*6)+(5*8)+(4*3)+(3*8)+(2*3)+(1*4)=203
203 % 10 = 3
So 1286838-34-3 is a valid CAS Registry Number.