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4-(5-amino-pyridin-3-yl)-2-methyl-but-3-yn-2-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

905439-58-9

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905439-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 905439-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,5,4,3 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 905439-58:
(8*9)+(7*0)+(6*5)+(5*4)+(4*3)+(3*9)+(2*5)+(1*8)=179
179 % 10 = 9
So 905439-58-9 is a valid CAS Registry Number.

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