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Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-5-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-2-[6-oxo-2-(2-phenoxy-acetylamino)-1,6-dihydro-purin-9-yl]-4-triisopropylsilanyloxy-tetrahydro-furan-3-yl ester methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128191-51-5

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128191-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128191-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,9 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128191-51:
(8*1)+(7*2)+(6*8)+(5*1)+(4*9)+(3*1)+(2*5)+(1*1)=125
125 % 10 = 5
So 128191-51-5 is a valid CAS Registry Number.

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