74918-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74918-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74918-31:
(7*7)+(6*4)+(5*9)+(4*1)+(3*8)+(2*3)+(1*1)=153
153 % 10 = 3
So 74918-31-3 is a valid CAS Registry Number.
InChI:InChI=1/C35H57NO12/c1-8-26-19(4)33-35(7,48-33)13-11-23(38)17(2)15-22(12-14-37)31(18(3)25(40)16-27(41)45-26)47-34-30(42)29(36)32(21(6)44-34)46-28-10-9-24(39)20(5)43-28/h11,13-14,17-22,24-26,28-34,39-40,42H,8-10,12,15-16,36H2,1-7H3/b13-11+/t17?,18?,19?,20-,21+,22?,24+,25?,26?,28-,29+,30+,31?,32+,33?,34?,35?/m0/s1