438232-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438232-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,2,3 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 438232-40:
(8*4)+(7*3)+(6*8)+(5*2)+(4*3)+(3*2)+(2*4)+(1*0)=137
137 % 10 = 7
So 438232-40-7 is a valid CAS Registry Number.