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216683-34-0

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216683-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216683-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,6,8 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 216683-34:
(8*2)+(7*1)+(6*6)+(5*6)+(4*8)+(3*3)+(2*3)+(1*4)=140
140 % 10 = 0
So 216683-34-0 is a valid CAS Registry Number.

216683-34-0Relevant articles and documents

Selective anion binding and solid-state host-guest chemistry of an extended cavity calix[6]pyrrole

Turner,Shterenberg,Kapon,Suwinska,Eichen

, p. 13 - 14 (2001)

Easily prepared, cone-like, extended cavity calix[6]pyrrole is shown to form strong complexes with iodine and other halide ions as well as with trihaloalkanes and electron deficient aromatic systems.

Selective ethylene tri-/tetramerization by in situ-formed chromium catalysts stabilized by N,P-based ancillary ligand systems

Yang, Yun,Liu, Zhen,Liu, Boping,Duchateau, Robbert

, p. 2353 - 2361 (2013/10/22)

A series of N,P-based ancillary ligands have been synthesized, and the corresponding catalysts, formed in situ by mixing one of the N,P-ligands, Cr(acac)3 and MAO, have been tested for ethylene oligomerization. Under standard ethylene oligomeri

Extended calixpyrroles: Meso-substituted calix[6]pyrroles

Turner, Boaz,Botoshansky, Mark,Eichen, Yoav

, p. 2475 - 2428 (2007/10/03)

A 1,3,5-alternate conformation of the pyrrole rings is adopted by the calix[6]pyrrole 1 in the crystal (see picture). Compound 1 was synthesized in a two-step process and although it crystallizes in the form of the adduct 1.3CH3COCH3

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