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20377-52-0

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20377-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20377-52-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,7 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20377-52:
(7*2)+(6*0)+(5*3)+(4*7)+(3*7)+(2*5)+(1*2)=90
90 % 10 = 0
So 20377-52-0 is a valid CAS Registry Number.

20377-52-0Upstream product

20377-52-0Downstream Products

20377-52-0Relevant articles and documents

Spectroscopy and crystal structure of anabasine salts

Wojciechowska-Nowak, Marzena,Boczoń, W?adys?aw,Rychlewska, Urszula,Warzajtis, Beata

, p. 44 - 52 (2007)

The anabasinium hydrochloride, hydriodide and perchlorate were characterized by IR and NMR spectroscopy as well as by X-ray diffraction. Anabasinium hydrochloride crystallizes with three independent ionic pairs in the asymmetric part of the orthorhombic unit cell, while anabasinium hydriodide and perchlorate crystals, being isostructural, are hexagonal and contain only one symmetry independent ionic pair. Despite these differences in the crystal data, both types of crystals display very similar helical solid-state patterns. The reported results combined with the CSD searches indicate an inherent tendency of anabasinium salts to crystallize with multiple asymmetric units, and to form folded arrangements in crystals. In the solid state the anabasinium cations predominantly adopt either synperiplanar or antiperiplanar conformations with respect to the mutual orientation of C*-H and pyridine C-C(N) bonds, with deformations towards, respectively, (+) synclinal or (+) anticlinal rotamers.

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