81975-88-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81975-88-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81975-88:
(7*8)+(6*1)+(5*9)+(4*7)+(3*5)+(2*8)+(1*8)=174
174 % 10 = 4
So 81975-88-4 is a valid CAS Registry Number.
InChI:InChI=1/C45H55NO18/c1-19-27(49)12-13-32(58-19)63-44-21(3)60-34(15-29(44)61-23(5)48)64-43-20(2)59-33(14-26(43)46(6)7)62-30-17-45(55,31(50)18-57-22(4)47)16-25-36(30)42(54)38-37(40(25)52)39(51)24-10-9-11-28(56-8)35(24)41(38)53/h9-11,19-21,26,29-30,32-34,43-44,52,54-55H,12-18H2,1-8H3