37642-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 37642-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,6,4 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 37642-90:
(7*3)+(6*7)+(5*6)+(4*4)+(3*2)+(2*9)+(1*0)=133
133 % 10 = 3
So 37642-90-3 is a valid CAS Registry Number.