1286685-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1286685-21-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,6,8 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1286685-21:
(9*1)+(8*2)+(7*8)+(6*6)+(5*6)+(4*8)+(3*5)+(2*2)+(1*1)=199
199 % 10 = 9
So 1286685-21-9 is a valid CAS Registry Number.