1638147-40-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1638147-40-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,8,1,4 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1638147-40:
(9*1)+(8*6)+(7*3)+(6*8)+(5*1)+(4*4)+(3*7)+(2*4)+(1*0)=176
176 % 10 = 6
So 1638147-40-6 is a valid CAS Registry Number.