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4951-05-7

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4951-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4951-05-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,5 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4951-05:
(6*4)+(5*9)+(4*5)+(3*1)+(2*0)+(1*5)=97
97 % 10 = 7
So 4951-05-7 is a valid CAS Registry Number.

4951-05-7Downstream Products

4951-05-7Relevant articles and documents

Cyclization of 4,5-diamino pyrazole derivatives and their antibacterial activities

Rizk, Hala F.,Ei-Badawi, Mahmoud A.,Ibrahim, Seham A.,Ei-Borai, Mohamed A.

experimental part, p. 1451 - 1459 (2011/10/30)

A convenient synthesis of intermediate 4,5-diamino-3-aryl-1-phenylpyrazoles 4a-4c was reported. The different cyclization reactions were carried out with chalcone, 2-mercaptoacetic acid and p-anisialdehyde, ethyl chloroformate, glyoxal and thiourea to afford different N and S containing heterocycles. The reaction conditions were compared by conventional heating and microwave irradiation. The structures of the cyclization products were determined by analytical and spectroscopic data. All the synthesized compounds were screened for antibacterial activities in vitro. Copyright

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