152503-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 152503-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,5,0 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 152503-91:
(8*1)+(7*5)+(6*2)+(5*5)+(4*0)+(3*3)+(2*9)+(1*1)=108
108 % 10 = 8
So 152503-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C27H22N4O3S/c1-3-15-30(18-20-8-13-25-24(17-20)27(32)29-19(2)28-25)22-9-11-23(12-10-22)35(33,34)31-16-14-21-6-4-5-7-26(21)31/h1,4-14,16-17H,15,18H2,2H3,(H,28,29,32)