89923-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89923-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,2 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89923-42:
(7*8)+(6*9)+(5*9)+(4*2)+(3*3)+(2*4)+(1*2)=182
182 % 10 = 2
So 89923-42-2 is a valid CAS Registry Number.
InChI:InChI=1/C26H18Cl3N9O12S3.4Na/c1-10-21(22(39)38(37-10)18-8-15(28)20(9-14(18)27)53(48,49)50)36-35-17-6-11(2-5-19(17)52(45,46)47)30-25-32-24(29)33-26(34-25)31-16-4-3-12(51(42,43)44)7-13(16)23(40)41;;;;/h2-9,21H,1H3,(H,40,41)(H,42,43,44)(H,45,46,47)(H,48,49,50)(H2,30,31,32,33,34);;;;/q;4*+1/p-4/b36-35+;;;;