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(S)-4,5-dihydroxy-2-(4-nitro-phenylhydrazono)-valeraldehyde-(4-nitro-phenylhydrazone) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

98309-06-9

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98309-06-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98309-06-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,0 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 98309-06:
(7*9)+(6*8)+(5*3)+(4*0)+(3*9)+(2*0)+(1*6)=159
159 % 10 = 9
So 98309-06-9 is a valid CAS Registry Number.

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