1603833-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1603833-77-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,3,8,3 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1603833-77:
(9*1)+(8*6)+(7*0)+(6*3)+(5*8)+(4*3)+(3*3)+(2*7)+(1*7)=157
157 % 10 = 7
So 1603833-77-7 is a valid CAS Registry Number.