74764-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74764-74-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,6 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74764-74:
(7*7)+(6*4)+(5*7)+(4*6)+(3*4)+(2*7)+(1*4)=162
162 % 10 = 2
So 74764-74-2 is a valid CAS Registry Number.
InChI:InChI=1/C26H19N5O11S3.3Na/c32-31(33)23-12-4-18(26(16-23)45(40,41)42)2-1-17-3-5-22(15-25(17)44(37,38)39)30-29-20-8-6-19(7-9-20)27-28-21-10-13-24(14-11-21)43(34,35)36;;;/h1-16H,(H,34,35,36)(H,37,38,39)(H,40,41,42);;;/q;3*+1/p-3/b2-1+,28-27+,30-29+;;;