156131-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156131-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,1,3 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156131-91:
(8*1)+(7*5)+(6*6)+(5*1)+(4*3)+(3*1)+(2*9)+(1*1)=118
118 % 10 = 8
So 156131-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C38H58O10.C37H56O10/c1-8-23(2)34-26(5)14-15-37(48-34)20-30-19-29(47-37)13-12-25(4)33(45-22-43-17-16-42-7)24(3)10-9-11-28-21-44-35-32(39)27(6)18-31(36(40)46-30)38(28,35)41;1-22(2)32-25(5)13-14-36(47-32)19-29-18-28(46-36)12-11-24(4)33(44-21-42-16-15-41-7)23(3)9-8-10-27-20-43-34-31(38)26(6)17-30(35(39)45-29)37(27,34)40/h9-12,18,23-24,26,29-35,39,41H,8,13-17,19-22H2,1-7H3;8-11,17,22-23,25,28-34,38,40H,12-16,18-21H2,1-7H3/b10-9+,25-12+,28-11+;9-8+,24-11+,27-10+/t23-,24-,26-,29+,30-,31-,32+,33-,34+,35+,37+,38+;23-,25-,28+,29-,30-,31+,32+,33-,34+,36+,37+/m00/s1