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83400-19-5

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  • 1,7-Naphthalenedisulfonicacid,2-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5-hydroxy-6-[2-(4-methoxy-2,5-disulfophenyl)diazenyl]-,sodium salt (1:4)

    Cas No: 83400-19-5

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  • 1,7-Naphthalenedisulfonicacid,2-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5-hydroxy-6-[2-(4-methoxy-2,5-disulfophenyl)diazenyl]-,sodium salt (1:4)

    Cas No: 83400-19-5

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  • 1,7-Naphthalenedisulfonicacid,2-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5-hydroxy-6-[2-(4-methoxy-2,5-disulfophenyl)diazenyl]-,sodium salt (1:4)

    Cas No: 83400-19-5

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83400-19-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83400-19-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,0 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83400-19:
(7*8)+(6*3)+(5*4)+(4*0)+(3*0)+(2*1)+(1*9)=105
105 % 10 = 5
So 83400-19-5 is a valid CAS Registry Number.
InChI:InChI=1/C26H17Cl2N5O15S4.4Na/c1-48-17-9-18(49(36,37)38)16(8-19(17)50(39,40)41)32-33-21-20(51(42,43)44)7-12-11(22(21)34)3-5-14(23(12)52(45,46)47)31-26(35)10-2-4-13-15(6-10)30-25(28)24(27)29-13;;;;/h2-9,32H,1H3,(H,31,35)(H,36,37,38)(H,39,40,41)(H,42,43,44)(H,45,46,47);;;;/q;4*+1/p-4/b33-21-;;;;

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