83221-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83221-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,2 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83221-59:
(7*8)+(6*3)+(5*2)+(4*2)+(3*1)+(2*5)+(1*9)=114
114 % 10 = 4
So 83221-59-4 is a valid CAS Registry Number.
InChI:InChI=1/C37H27N7O9S.K.Na/c38-23-5-1-20(2-6-23)36(48)40-27-13-15-29-22(17-27)18-32(54(51,52)53)33(34(29)46)44-42-26-11-9-24(10-12-26)39-35(47)21-3-7-25(8-4-21)41-43-28-14-16-31(45)30(19-28)37(49)50;;/h1-19,41-42H,38H2,(H,39,47)(H,40,48)(H,49,50)(H,51,52,53);;/q;2*+1/p-2/b43-28+,44-33-;;