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181780-41-6

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181780-41-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181780-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,8 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 181780-41:
(8*1)+(7*8)+(6*1)+(5*7)+(4*8)+(3*0)+(2*4)+(1*1)=146
146 % 10 = 6
So 181780-41-6 is a valid CAS Registry Number.

181780-41-6Downstream Products

181780-41-6Relevant articles and documents

Novel Quaternary Ammonium Salt-Containing Polyamines from Agelenopsis aperta Funnel-Web Spider

Jasys, V. John,Kelbaugh, Paul R.,Nason, Deane M.,Phillips, Douglas,Rosnack, Kenneth J.,et al.

, p. 1814 - 1820 (2007/10/02)

Two novel hydroxylamine-containing acylpolyamines, Agel 489a and Agel 505a, each bearing a terminal quaternary ammonium salt, were isolated from the venom of Agelenopsis aperta, a funnel-web spider found throughout the western United States.Published structures for these compounds were not consistent with our spectral data.On the basis of fast-atom bombardment (FAB) mass spectrometry and 1H and 13C NMR spectra, novel structures for Agel 489a and 505a are proposed.These structural assignments are confirmed by the total synthesis of Agel 489a.

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