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83221-46-9

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  • 2,7-Naphthalenedisulfonicacid,4-[2-[4-[2-[4-[2-(8-amino-2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl]-5-methoxy-2-methylphenyl]diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-5-hydroxy-,potassium sodium salt

    Cas No: 83221-46-9

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  • 2,7-Naphthalenedisulfonicacid,4-[2-[4-[2-[4-[2-(8-amino-2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl]-5-methoxy-2-methylphenyl]diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-5-hydroxy-,potassium sodium salt

    Cas No: 83221-46-9

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  • 4-[[4-[[4-[(8-AMINO-2-HYDROXY-6-SULFO-NAPHTHALEN-1-YL)AZO]-5-METHOXY-O-TOLYL]AZO]-6-SULFO-NAPHTHALEN-1-YL]AZO]-5-HYDROXYNAPHTHALENE-2,7-DISULFONIC ACID,POTASSIUM SODIUM SALT

    Cas No: 83221-46-9

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83221-46-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83221-46-9 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 83221-46:
(7*8)+(6*3)+(5*2)+(4*2)+(3*1)+(2*4)+(1*6)=109
109 % 10 = 9
So 83221-46-9 is a valid CAS Registry Number.

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