212757-95-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212757-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,7,5 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 212757-95:
(8*2)+(7*1)+(6*2)+(5*7)+(4*5)+(3*7)+(2*9)+(1*5)=134
134 % 10 = 4
So 212757-95-4 is a valid CAS Registry Number.