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83221-43-6

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  • 2,7-Naphthalenedisulfonicacid,4-hydroxy-5-[2-[4-[2-[4-[2-[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-,ammonium sodium salt (1:

    Cas No: 83221-43-6

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  • 2,7-Naphthalenedisulfonicacid,4-hydroxy-5-[2-[4-[2-[4-[2-[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-,ammonium sodium salt (1:

    Cas No: 83221-43-6

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  • 4-HYDROXY-5-[[4-[[4-[[1-HYDROXY-6-(PHENYLAMINO)-3-SULFO-2-NAPHTHYL]AZO]-6-SULFO-NAPHTHALEN-1-YL]AZO]-NAPHTHALEN-1-YL]AZO]NAPHTHALENE-2,7-DISULFONIC ACID,AMMONIUM SODIUM SALT

    Cas No: 83221-43-6

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83221-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83221-43-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83221-43:
(7*8)+(6*3)+(5*2)+(4*2)+(3*1)+(2*4)+(1*3)=106
106 % 10 = 6
So 83221-43-6 is a valid CAS Registry Number.

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