1638152-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1638152-99-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,8,1,5 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1638152-99:
(9*1)+(8*6)+(7*3)+(6*8)+(5*1)+(4*5)+(3*2)+(2*9)+(1*9)=184
184 % 10 = 4
So 1638152-99-4 is a valid CAS Registry Number.