33340-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33340-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,3,4 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33340-33:
(7*3)+(6*3)+(5*3)+(4*4)+(3*0)+(2*3)+(1*3)=79
79 % 10 = 9
So 33340-33-9 is a valid CAS Registry Number.
InChI:InChI=1/C22H17N3O9S2.2Na/c1-11(26)23-12-6-8-13(9-7-12)24-25-17-10-16-18(22(36(32,33)34)21(17)35(29,30)31)20(28)15-5-3-2-4-14(15)19(16)27;;/h2-10,24-25H,1H3,(H,23,26)(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2