1557814-37-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1557814-37-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,7,8,1 and 4 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1557814-37:
(9*1)+(8*5)+(7*5)+(6*7)+(5*8)+(4*1)+(3*4)+(2*3)+(1*7)=195
195 % 10 = 5
So 1557814-37-5 is a valid CAS Registry Number.