637323-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637323-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,2 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 637323-38:
(8*6)+(7*3)+(6*7)+(5*3)+(4*2)+(3*3)+(2*3)+(1*8)=157
157 % 10 = 7
So 637323-38-7 is a valid CAS Registry Number.