1251999-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1251999-18-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,1,9,9 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1251999-18:
(9*1)+(8*2)+(7*5)+(6*1)+(5*9)+(4*9)+(3*9)+(2*1)+(1*8)=184
184 % 10 = 4
So 1251999-18-4 is a valid CAS Registry Number.