20839-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20839-12-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,3 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20839-12:
(7*2)+(6*0)+(5*8)+(4*3)+(3*9)+(2*1)+(1*2)=97
97 % 10 = 7
So 20839-12-7 is a valid CAS Registry Number.
InChI:InChI=1/C38H60O8/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-31(41)45-34-26(3)37(44)29(32-35(5,6)38(32,34)46-27(4)40)22-28(24-39)23-36(43)30(37)21-25(2)33(36)42/h21-22,26,29-30,32,34,39,43-44H,7-20,23-24H2,1-6H3/t26-,29+,30-,32-,34+,36-,37-,38?/m1/s1