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158117-56-7

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158117-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158117-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,1,1 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 158117-56:
(8*1)+(7*5)+(6*8)+(5*1)+(4*1)+(3*7)+(2*5)+(1*6)=137
137 % 10 = 7
So 158117-56-7 is a valid CAS Registry Number.

158117-56-7Downstream Products

158117-56-7Relevant articles and documents

Preparation and Fungitoxicity of 3,6-Dichloro- and 3,6-Dibromo-8-Quinolinols

Gershon, H.,Clarke, D. D.,Gershon, M.

, p. 723 - 730 (1994)

3,6-Dichloro- and 3,6-dibromo-8-quinolinols were prepared by direct halogenation of 8-nitroquinoline by N-halosuccinimide in acetic acid or by halogenation of the corresponding 6-halo-8-nitroquinoline prepared via a Skraup reaction.The nitro group was reduced to amino and the amine was hydrolyzed to the phenol in 70percent sulfuric acid at 220 deg C.The fungitoxicity of 3,6-dichloro- and 3,6-dibromo-8-quinolinols, as well as intermediates in their preparation, against Aspergillus niger, Aspergillus oryzae, Myrothecium verrucaria, Trichoderma viride, and Mucor cirinelloides was determined. 3,6-dichloro-8-quinolinol is the most fungitoxic analogue of this class of compounds observed to date. - Keywords. 3,6-dichloro-8-nitroquinoline; 3,6-dibromo-8-nitroquinoline; 8-amino-3,6-dichloroquinoline; 8-amino-3,6-dibromoquinoline; 3,6-dichloro-8-quinolinol; 3,6-dibromo-8-quinolinol; 1H NMR spectra.

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