1285541-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1285541-42-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,5,5,4 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1285541-42:
(9*1)+(8*2)+(7*8)+(6*5)+(5*5)+(4*4)+(3*1)+(2*4)+(1*2)=165
165 % 10 = 5
So 1285541-42-5 is a valid CAS Registry Number.