181780-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181780-92-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,8 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 181780-92:
(8*1)+(7*8)+(6*1)+(5*7)+(4*8)+(3*0)+(2*9)+(1*2)=157
157 % 10 = 7
So 181780-92-7 is a valid CAS Registry Number.