1613737-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613737-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,7,3 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1613737-23:
(9*1)+(8*6)+(7*1)+(6*3)+(5*7)+(4*3)+(3*7)+(2*2)+(1*3)=157
157 % 10 = 7
So 1613737-23-7 is a valid CAS Registry Number.