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100189-85-3

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100189-85-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100189-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,1,8 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 100189-85:
(8*1)+(7*0)+(6*0)+(5*1)+(4*8)+(3*9)+(2*8)+(1*5)=93
93 % 10 = 3
So 100189-85-3 is a valid CAS Registry Number.

100189-85-3Downstream Products

100189-85-3Relevant articles and documents

Aromaticity of Highly Bent Benzene Rings. An Investigation by High Field Deuterium NMR of Metacyclophane and Model Compounds

Zijl, P. C. M. van,Jenneskens, L. W.,Bastiaan, E. W.,MacLean, C.,Wolf, W. H. de,Bickelhaupt, F.

, p. 1415 - 1418 (2007/10/02)

High field deuterium NMR provides a new and simple method for establishing the degree of aromaticity of a compound.The procedure is based on the determination of the magnetic susceptibility anisotropy from quadrupolar deuterium couplings of molecules in solution aligned by the magnetic field.The technique is illustrated for some deuterated dialkylbenzenes (2d, 3e, 4e) and applied to metacyclophane (1d).Surprisingly, 1d is found to be fully aromatic in spite of its strongly bent benzene ring.

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