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88490-32-8

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88490-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88490-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,4,9 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 88490-32:
(7*8)+(6*8)+(5*4)+(4*9)+(3*0)+(2*3)+(1*2)=168
168 % 10 = 8
So 88490-32-8 is a valid CAS Registry Number.

88490-32-8Relevant articles and documents

Synthesis, antituberculostatic, antifungal and antibacterial activities of 3-substituted phenyl-6-substituted phenyl-1,2,4-triazolo[4,3-b]pyridazines

Islam, Mojahidul,Siddiqui, Anees A.

, p. 555 - 562 (2011/05/05)

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Some reactions with 6-(biphenyl)-4-(5-oxo-1,3-diphenyl-2-pyrazolin-4-yl)-4,5-dihydropyridazin-3-(2H) ones

Kassab,Sayed,Radwan,Abd El-Azzez

, p. 649 - 655 (2007/10/03)

4-biphenyl-4-oxo-2-butenoic acid (1) reacted with 1,3-diphenyl-2-pyrazolin-5-one (2) to give 4-biphenyl-4-oxo-2-(5-oxo-1,3-diphenyl-2-pyrazolin-4-yl) butanoic acid (3) The condensation of (3) with hydrazines affords the corresponding pyridazinones (4, 5). Reaction of pyridazinone (4) with POCl3 gave the chloropyridazine derevative (7) which was subjected to further studies with hydrazine hydrate, aromatic amines, anthranilic acid, thiourea and sulfa drugs to give compounds (8-15). Reaction of pyridazinone (4) with phosphorus pentasulfide gave the corresponding thiopyridazine derivative (16). The in-vitro antibacterial screening revealed that some of the new compounds possess activity against Gram-positive, Gram-negative bacteria and fungi.

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