1258394-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1258394-21-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,3,9 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1258394-21:
(9*1)+(8*2)+(7*5)+(6*8)+(5*3)+(4*9)+(3*4)+(2*2)+(1*1)=176
176 % 10 = 6
So 1258394-21-6 is a valid CAS Registry Number.