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methyl-[1]naphthyl-phenyl-arsine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

56844-55-4

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56844-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56844-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,4 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 56844-55:
(7*5)+(6*6)+(5*8)+(4*4)+(3*4)+(2*5)+(1*5)=154
154 % 10 = 4
So 56844-55-4 is a valid CAS Registry Number.
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