137338-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137338-39-7 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 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137338-39:
(8*1)+(7*3)+(6*7)+(5*3)+(4*3)+(3*8)+(2*3)+(1*9)=137
137 % 10 = 7
So 137338-39-7 is a valid CAS Registry Number.