129958-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129958-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,5 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129958-78:
(8*1)+(7*2)+(6*9)+(5*9)+(4*5)+(3*8)+(2*7)+(1*8)=187
187 % 10 = 7
So 129958-78-7 is a valid CAS Registry Number.