1285531-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1285531-34-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,5,5,3 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1285531-34:
(9*1)+(8*2)+(7*8)+(6*5)+(5*5)+(4*3)+(3*1)+(2*3)+(1*4)=161
161 % 10 = 1
So 1285531-34-1 is a valid CAS Registry Number.