72152-54-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72152-54-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,5 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72152-54:
(7*7)+(6*2)+(5*1)+(4*5)+(3*2)+(2*5)+(1*4)=106
106 % 10 = 6
So 72152-54-6 is a valid CAS Registry Number.
InChI:InChI=1/C23H19N3O9S2.2Na/c1-11(27)10-25-12-6-7-15(17(8-12)36(30,31)32)26-16-9-18(37(33,34)35)21(24)20-19(16)22(28)13-4-2-3-5-14(13)23(20)29;;/h2-9,25-26H,10,24H2,1H3,(H,30,31,32)(H,33,34,35);;/q;2*+1/p-2