156857-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156857-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,8,5 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156857-31:
(8*1)+(7*5)+(6*6)+(5*8)+(4*5)+(3*7)+(2*3)+(1*1)=167
167 % 10 = 7
So 156857-31-7 is a valid CAS Registry Number.
InChI:InChI=1/C62H102O32/c1-22(19-82-54-47(78)44(75)41(72)34(16-63)87-54)9-12-62(81-6)23(2)37-33(94-62)14-28-26-8-7-25-13-32(29(66)15-61(25,5)27(26)10-11-60(28,37)4)86-58-52(92-57-48(79)43(74)38(69)24(3)85-57)49(80)50(36(18-65)89-58)90-59-53(93-56-46(77)40(71)31(68)21-84-56)51(42(73)35(17-64)88-59)91-55-45(76)39(70)30(67)20-83-55/h22-28,30-59,63-65,67-80H,7-21H2,1-6H3/t22-,23+,24+,25+,26-,27+,28+,30-,31+,32-,33+,34-,35-,36-,37+,38+,39+,40+,41-,42-,43-,44+,45-,46-,47-,48-,49+,50-,51+,52-,53-,54-,55+,56+,57+,58-,59+,60+,61+,62-/m1/s1