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177900-31-1

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177900-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177900-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,9,0 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177900-31:
(8*1)+(7*7)+(6*7)+(5*9)+(4*0)+(3*0)+(2*3)+(1*1)=151
151 % 10 = 1
So 177900-31-1 is a valid CAS Registry Number.

177900-31-1Downstream Products

177900-31-1Relevant articles and documents

Synthesis of some new pyrimidine bases as precursors of potential anticancer nucleosides

Sharma, Anoop K.,Yadav, Ashok K.,Prakash, Lalit

, p. 740 - 742 (2007/10/03)

3,5,7-Trisubstituted-pyridopyrimidine-2,4(1H,3H)-diones (4) have been synthesized from the reaction of 2-amino-3-cyano-4,6-diarylpyridines (2) with arylisocyanates in dioxan-pyridine.Compounds 4 have also been prepared by the hydrolysis of 2 with alc.KOH to give 2-amino-3-carboxamido-4,6-disubstituted pyridines (3) which on refluxing with arylisocyanate in diphenyl ether afford 4.They are characterised by elemental analyses and IR and 1H NMR spectral data.They have been tested for antibacterial and antifungal activity.

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