1377948-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1377948-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,7,9,4 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1377948-89:
(9*1)+(8*3)+(7*7)+(6*7)+(5*9)+(4*4)+(3*8)+(2*8)+(1*9)=234
234 % 10 = 4
So 1377948-89-4 is a valid CAS Registry Number.