1356399-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1356399-81-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,6,3,9 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1356399-81:
(9*1)+(8*3)+(7*5)+(6*6)+(5*3)+(4*9)+(3*9)+(2*8)+(1*1)=199
199 % 10 = 9
So 1356399-81-9 is a valid CAS Registry Number.