57931-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57931-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,3 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57931-23:
(7*5)+(6*7)+(5*9)+(4*3)+(3*1)+(2*2)+(1*3)=144
144 % 10 = 4
So 57931-23-4 is a valid CAS Registry Number.
InChI:InChI=1/C22H38O5/c1-4-5-14-22(2,3)20(25)13-12-17-16(18(23)15-19(17)24)10-8-6-7-9-11-21(26)27/h6-7,12-13,16-20,23-25H,4-5,8-11,14-15H2,1-3H3,(H,26,27)/b7-6-,13-12+/t16-,17-,18+,19-,20-/m1/s1