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phthalic acid mono-((1RS,2SR)-2-deuterio-1-methyl-2-phenyl-propyl ester) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

109891-90-9

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109891-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109891-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,9 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109891-90:
(8*1)+(7*0)+(6*9)+(5*8)+(4*9)+(3*1)+(2*9)+(1*0)=159
159 % 10 = 9
So 109891-90-9 is a valid CAS Registry Number.

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