128988-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128988-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,8 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128988-58:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*8)+(2*5)+(1*8)=189
189 % 10 = 9
So 128988-58-9 is a valid CAS Registry Number.
InChI:InChI=1/C33H40O20/c1-10-19(38)23(42)26(45)31(47-10)53-30-25(44)21(40)17(9-35)51-33(30)52-29-22(41)18-14(37)6-13(48-32-27(46)24(43)20(39)16(8-34)50-32)7-15(18)49-28(29)11-2-4-12(36)5-3-11/h2-7,10,16-17,19-21,23-27,30-40,42-46H,8-9H2,1H3/t10-,16+,17+,19-,20+,21-,23+,24-,25-,26+,27+,30+,31-,32+,33-/m0/s1