1277958-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1277958-70-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,7,9,5 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1277958-70:
(9*1)+(8*2)+(7*7)+(6*7)+(5*9)+(4*5)+(3*8)+(2*7)+(1*0)=219
219 % 10 = 9
So 1277958-70-9 is a valid CAS Registry Number.