52132-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52132-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,1,3 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 52132-81:
(7*5)+(6*2)+(5*1)+(4*3)+(3*2)+(2*8)+(1*1)=87
87 % 10 = 7
So 52132-81-7 is a valid CAS Registry Number.
InChI:InChI=1/C26H20N2O6S2/c1-15-11-23(17-5-3-7-19(13-17)35(29,30)31)21-9-10-22-24(12-16(2)28-26(22)25(21)27-15)18-6-4-8-20(14-18)36(32,33)34/h3-14H,1-2H3,(H,29,30,31)(H,32,33,34)