131956-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131956-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131956-33:
(8*1)+(7*3)+(6*1)+(5*9)+(4*5)+(3*6)+(2*3)+(1*3)=127
127 % 10 = 7
So 131956-33-7 is a valid CAS Registry Number.
InChI:InChI=1/C38H65N9O9/c1-10-23(8)30(39-19-48)34(51)45-31-24(9)56-38(55)28-14-12-16-41-47(28)36(53)26(18-21(4)5)43-33(50)27-13-11-15-40-46(27)37(54)29(22(6)7)44-32(49)25(17-20(2)3)42-35(31)52/h19-31,40-41H,10-18H2,1-9H3,(H,39,48)(H,42,52)(H,43,50)(H,44,49)(H,45,51)