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5-{5-[8-amino-1-hydroxy-7-(4-nitro-phenylazo)-3,6-disulfo-[2]naphthylazo]-[1]naphthylazo}-2-hydroxy-benzoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

117203-89-1

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117203-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117203-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,0 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117203-89:
(8*1)+(7*1)+(6*7)+(5*2)+(4*0)+(3*3)+(2*8)+(1*9)=101
101 % 10 = 1
So 117203-89-1 is a valid CAS Registry Number.

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