57-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57-65-8 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57-65:
(4*5)+(3*7)+(2*6)+(1*5)=58
58 % 10 = 8
So 57-65-8 is a valid CAS Registry Number.
InChI:InChI=1/C21H24I3NO4.ClH/c1-4-25(5-2)8-9-28-20(26)12-14-10-17(23)21(18(24)11-14)29-15-6-7-19(27-3)16(22)13-15;/h6-7,10-11,13H,4-5,8-9,12H2,1-3H3;1H