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117053-43-7

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117053-43-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117053-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,0,5 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117053-43:
(8*1)+(7*1)+(6*7)+(5*0)+(4*5)+(3*3)+(2*4)+(1*3)=97
97 % 10 = 7
So 117053-43-7 is a valid CAS Registry Number.

117053-43-7Downstream Products

117053-43-7Relevant articles and documents

SYNTHESIS OF 2-AMINO-5-HYDROXY-4-PYRIMIDONES AND 5,6-BIHETEROARYLS USING p-NITROPHENYL 3-BROMO-2,2-DIETHOXYPROPIONATE (NPBDP)

LaMattina, John L.,Mularski, Christian J.,Muse, David E.

, p. 3073 - 3078 (2007/10/02)

The reaction of NPBDP with various guanidines affords, after formic acid hydrolysis, 2-amino-5-hydroxy-4-pyrimidones.Reaction of NPBDP with o-aminoheterocycles gives similar results.NPBDP is readily converted to the 3-amino-2-alkenenitrile, 10, a key building block for the synthesis of 5,6-biheteroaryls.

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