1779-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1779-33-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,7 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1779-33:
(6*1)+(5*7)+(4*7)+(3*9)+(2*3)+(1*3)=105
105 % 10 = 5
So 1779-33-5 is a valid CAS Registry Number.