138748-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138748-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,4 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138748-39:
(8*1)+(7*3)+(6*8)+(5*7)+(4*4)+(3*8)+(2*3)+(1*9)=167
167 % 10 = 7
So 138748-39-7 is a valid CAS Registry Number.
InChI:InChI=1/C11H11NO7S/c1-7(11(14)15)12-10(13)6-8-2-4-9(5-3-8)19-20(16,17)18/h2-5H,1,6H2,(H,12,13)(H,14,15)(H,16,17,18)