129758-87-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129758-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,5 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129758-87:
(8*1)+(7*2)+(6*9)+(5*7)+(4*5)+(3*8)+(2*8)+(1*7)=178
178 % 10 = 8
So 129758-87-8 is a valid CAS Registry Number.