1690910-33-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1690910-33-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,9,0,9,1 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1690910-33:
(9*1)+(8*6)+(7*9)+(6*0)+(5*9)+(4*1)+(3*0)+(2*3)+(1*3)=178
178 % 10 = 8
So 1690910-33-8 is a valid CAS Registry Number.