1257333-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257333-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,3,3 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1257333-75:
(9*1)+(8*2)+(7*5)+(6*7)+(5*3)+(4*3)+(3*3)+(2*7)+(1*5)=157
157 % 10 = 7
So 1257333-75-7 is a valid CAS Registry Number.