20710-04-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20710-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,1 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20710-04:
(7*2)+(6*0)+(5*7)+(4*1)+(3*0)+(2*0)+(1*4)=57
57 % 10 = 7
So 20710-04-7 is a valid CAS Registry Number.
InChI:InChI=1/C13H13IO8/c14-6-4-2-1-3-5(6)12(20)22-13-9(17)7(15)8(16)10(21-13)11(18)19/h1-4,7-10,13,15-17H,(H,18,19)/t7-,8-,9+,10-,13-/m0/s1