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402939-34-8

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402939-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402939-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 402939-34:
(8*4)+(7*0)+(6*2)+(5*9)+(4*3)+(3*9)+(2*3)+(1*4)=138
138 % 10 = 8
So 402939-34-8 is a valid CAS Registry Number.

402939-34-8Downstream Products

402939-34-8Relevant articles and documents

Synthesis, antibacterial and antifungal activities of 2,5-disubstituted-1, 3,4-oxadiazoles

Nadagouda,Khochage, Atul,Pradeepkumar,Korat, Haresh,Gadaginamath,Joshi

, p. 85 - 90 (2013/12/04)

A series of 2,5- distributed 1,3,4-oxadiazole derivatives were prepared and evaluated for their antibacterial and antifungal activities. 5-[(2, 4, 6-trichlorophenoxy) methyl]- 1,3,4-oxadiazol-2-thiol 5 was synthesized by the reaction of 2-(2,4,6,-trichlorophenoxy) acetic acid hydrazide 4 with CS 2 and KOH in ethanol. The compound 5 on reaction with ethyl chloroacetate gave ethyl-2-(5-(2,4,6-trichlorophenoxy)methyl)-1,3,4-oxadiazol- 2-ylthio) acetate 6 and this on further hydrolysis by sodium hydroxide, followed by acidification gave 2-(5-((2,4,6-trichlorophenoxy)methyl)-1l3,4-oxadiazol-2- ylthio) acetic acid. 7.The compound 5 on condensation with p-benzoquinone in dry acetone gave 2- (5-((2,4l6-trichlorophenoxy)methyl)-1,3l4-oxadiazol-2-ylthio) benzene-1,4-diol 8.1,3,4- Oxadiazole derivatives 9-15 were prepared by treating hydrazide 4 with aromatic acids, in presence of dehydrating agent. Structures of the newly synthesized compounds were confirmed on the basis of physico-chemical and spectral data. All the synthesized compounds were screened for their antibacterial and antifungal activities using broth micro dilution method. Compounds have shown moderate to good antibacterial and antifungal activities.

Synthesis and antimicrobial activity of 1,2,4-triazoles

Patel,Mistry,Desai

, p. 964 - 965 (2007/10/03)

3-(2′,4′,6′-Trichlorophenoxymethyl)-4-(4″ -methoxyphenyl)-5-aryl-1,2,4-triazoles (4a-j) and 3-(2′,4′,6′ -trichlorophenoxymethyl)-4-(N-benzylidenylamino)-5-mercapto-1,2,4-triazoles (7a-j) have been synthesized, and their antimicrobial activities studied.

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