81161-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81161-27-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,6 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81161-27:
(7*8)+(6*1)+(5*1)+(4*6)+(3*1)+(2*2)+(1*7)=105
105 % 10 = 5
So 81161-27-5 is a valid CAS Registry Number.
InChI:InChI=1/C33H46N2O10/c1-6-35-16-28(17-45-26(37)19-9-7-8-10-21(19)34-18(2)36)12-11-24(43-4)32-23(28)15-29(38,27(32)35)30(39)14-22(42-3)20-13-31(32,40)33(30,41)25(20)44-5/h7-10,20,22-25,27,38-41H,6,11-17H2,1-5H3,(H,34,36)/t20-,22+,23-,24+,25+,27?,28+,29-,30+,31-,32+,33+/m1/s1