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84434-53-7

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  • 2-Naphthalenesulfonicacid,7-amino-3-[2-[2,5-dimethyl-4-[2-(2-methyl-4-sulfophenyl)diazenyl]phenyl]diazenyl]-4-hydroxy-,sodium salt (1:2)

    Cas No: 84434-53-7

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84434-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84434-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,4,3 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84434-53:
(7*8)+(6*4)+(5*4)+(4*3)+(3*4)+(2*5)+(1*3)=137
137 % 10 = 7
So 84434-53-7 is a valid CAS Registry Number.
InChI:InChI=1/C25H23N5O7S2.2Na/c1-13-8-18(38(32,33)34)5-7-20(13)27-28-21-9-15(3)22(10-14(21)2)29-30-24-23(39(35,36)37)12-16-11-17(26)4-6-19(16)25(24)31;;/h4-12,29H,26H2,1-3H3,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b28-27+,30-24-;;

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