1549988-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1549988-77-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,9,9,8 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1549988-77:
(9*1)+(8*5)+(7*4)+(6*9)+(5*9)+(4*8)+(3*8)+(2*7)+(1*7)=253
253 % 10 = 3
So 1549988-77-3 is a valid CAS Registry Number.