4434-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4434-20-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,3 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4434-20:
(6*4)+(5*4)+(4*3)+(3*4)+(2*2)+(1*0)=72
72 % 10 = 2
So 4434-20-2 is a valid CAS Registry Number.
InChI:InChI=1/C24H28ClN3OS.2C4H4O4/c1-26-24(29)10-12-28-15-13-27(14-16-28)11-4-6-19-20-5-2-3-7-22(20)30-23-9-8-18(25)17-21(19)23;2*5-3(6)1-2-4(7)8/h2-3,5-9,17H,4,10-16H2,1H3,(H,26,29);2*1-2H,(H,5,6)(H,7,8)/b19-6-;2*2-1-