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Phosphonic acid, [(4-methoxy-5-methyl-2-oxo-2H-pyran-6-yl)methyl]-, dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

111905-08-9

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111905-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111905-08-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,0 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 111905-08:
(8*1)+(7*1)+(6*1)+(5*9)+(4*0)+(3*5)+(2*0)+(1*8)=89
89 % 10 = 9
So 111905-08-9 is a valid CAS Registry Number.

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