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Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-2-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-4-(tert-butyl-dimethyl-silanyloxy)-5-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-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.

128191-42-4

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128191-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128191-42-4 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, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128191-42:
(8*1)+(7*2)+(6*8)+(5*1)+(4*9)+(3*1)+(2*4)+(1*2)=124
124 % 10 = 4
So 128191-42-4 is a valid CAS Registry Number.

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