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23225-02-7

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23225-02-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23225-02-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,2 and 5 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23225-02:
(7*2)+(6*3)+(5*2)+(4*2)+(3*5)+(2*0)+(1*2)=67
67 % 10 = 7
So 23225-02-7 is a valid CAS Registry Number.

23225-02-7Downstream Products

23225-02-7Relevant articles and documents

Synthesis, properties, and mass-spectrometric fragmentation of 2-thio derivatives of 3-arylquinazolin-4-ones

Azev,Golomolzin,Dyulcks,Klyuev,Yatluk

, p. 356 - 361 (2008/09/21)

We have studied the reactions of alkylation, oxidation, and hydrolysis of 3-aryl-2-thioxoquinazolin-4-ones. Alkylation in an alkaline medium occurs exclusively at the sulfur atom. Oxidation by hydrogen peroxide leads to formation of 3-arylquinazoline-2,4-diones. The latter are also obtained in base or acid hydrolysis of the synthesized S-alkyl derivatives. When 3-aryl-2-thioxoquinazolin-4-ones are reacted with iodine, we obtain the disulfides, while the reaction with chlorine in hydrochloric acid leads to 2-chloroquinazolin-4-ones. Studying the mass spectrometric behavior of the compounds obtained made it possible to observe in the gas phase ring-chain isomerization of the heterocyclic ring, and also S-N migration of the propargyl radical in molecular ions of the S-propargyl derivatives.

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