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154366-93-5

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154366-93-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154366-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,3,6 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 154366-93:
(8*1)+(7*5)+(6*4)+(5*3)+(4*6)+(3*6)+(2*9)+(1*3)=145
145 % 10 = 5
So 154366-93-5 is a valid CAS Registry Number.

154366-93-5Relevant articles and documents

Synthesis and reactions of some new thienopyrimidines

Moneam, Maisa I. Abdel,Geies, Ahmed A.,El-Naggar, Galal M.,Mussa, Suliman M.

, p. 737 - 751 (2007/10/03)

4-Methyl-6-mercapto-2-phenylpyrimidine-5-carbonitrile (1) was reacted with different halo compounds, namely ethylchloroacetate, chloroacetone, bromoacetanilide, p-chlorobromoacetanilide, and p-methoxy chloroacetanilide in ethanol in the presence of sodium acetate yielded the corresponding S-alkylated derivatives (2a-e). The latter compounds underwent cyclization into thienopyrimidines (4a-e) upon treatment with sodium ethoxide in ethanol. The reaction of (4a) with hydrazine hydrate led to the formation of 5-amino-4-methyl-2-phenylthieno[2,3-d]pyrimidine-2-carbohydrazide (5). Compound (5) was reacted with a variety of reagents to produce other new thienopyrimidines as well as oxadiazolylthienopyrimidines (6, 11).

Synthesis of some pyrimidothienopyrimidine derivatives

Kamal El-Dean, Adel M.

, p. 523 - 533 (2007/10/03)

The pyrimidothienopyrimidines 5 and 6 have been synthesized via the reaction of compounds 4a, b with CS2 and were further transformed to related fused heterocyclic systems.

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