128439-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128439-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,4,3 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128439-47:
(8*1)+(7*2)+(6*8)+(5*4)+(4*3)+(3*9)+(2*4)+(1*7)=144
144 % 10 = 4
So 128439-47-4 is a valid CAS Registry Number.
InChI:InChI=1/C46H57NO18/c1-17-32(49)38(57-8)27(16-60-17)63-41-19(3)61-26(15-44(41,5)47-7)21-11-12-22-29(35(21)52)36(53)30-23(34(22)51)13-24(31-25(48)14-28(64-39(30)31)45(6)20(4)65-45)46(56,43(55)59-10)42-37(54)40(58-9)33(50)18(2)62-42/h11-14,17-20,26-27,32-33,37-38,40-42,47,49-50,52,54,56H,15-16H2,1-10H3