76542-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76542-33-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,4 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76542-33:
(7*7)+(6*6)+(5*5)+(4*4)+(3*2)+(2*3)+(1*3)=141
141 % 10 = 1
So 76542-33-1 is a valid CAS Registry Number.