137333-33-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137333-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,3 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137333-33:
(8*1)+(7*3)+(6*7)+(5*3)+(4*3)+(3*3)+(2*3)+(1*3)=116
116 % 10 = 6
So 137333-33-6 is a valid CAS Registry Number.