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199444-47-8

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199444-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199444-47-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,4 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 199444-47:
(8*1)+(7*9)+(6*9)+(5*4)+(4*4)+(3*4)+(2*4)+(1*7)=188
188 % 10 = 8
So 199444-47-8 is a valid CAS Registry Number.

199444-47-8Downstream Products

199444-47-8Relevant articles and documents

Direct N3 Alkylation of Uracil and Derivatives via N1-[2-(trimethylsilyl)ethoxymethyl] Protection

Arias,Guzmán,Jaime-Figueroa,Lopez,Morgans Jr.,Padilla,Pérez-Medrano,Quintero,Romero,Sandoval

, p. 1233 - 1234 (2007/10/03)

Protection at N1 position of uracil and uracil analogs as 2-(trimethylsilyl)ethoxymethyl derivatives permits the clean alkylation at N3. These protected uracils are quite stable in a wide range of pH.

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