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10066-20-3

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10066-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 10066-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,6 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 10066-20:
(7*1)+(6*0)+(5*0)+(4*6)+(3*6)+(2*2)+(1*0)=53
53 % 10 = 3
So 10066-20-3 is a valid CAS Registry Number.

10066-20-3Relevant articles and documents

Effect of substituents on spin density in benzimidazole nitronyl nitroxide radicals studied by electron spin resonance

Esat, Burak,Fidan, Ismail,Bahceci, Sumeyye,Yerli, Yusuf,Sari, Levent

scheme or table, p. 641 - 650 (2010/06/21)

Several novel benzimidazole-3-oxide-1-oxyl radicals with substituents at 5 and/or 6 position were synthesized. The ESR analysis of nitrogen hyperfine coupling constants (hfccs) revealed that substituents at 5 and 6-position affect the spin density to greater extent than substituents on the phenyl ring at 2-position. Density functional theory calculations of nitrogen hfccs were performed using several different Pople type basis sets, as well as double and triple zeta quality individual gauge for localized orbital (IGLO-II, IGLO-III) and electron paramagnetic resonance (EPR-II, EPR-II) basis sets. Experimental and theoretical hfccs are compared.

Studies on the Reaction of o-Benzoquinone Dioxime with Aldehydes: An Improved Procedure for 1-Hydroxybenzimidazole 3 -Oxides

Paetzold, F.,Niclas, H.-J.,Gruendemann, E.

, p. 345 - 350 (2007/10/02)

An improved method for the preparation of the title compounds 4 is described.Thus, 1-hydroxybenzimidazole 3-oxides are obtained in high yields by the reaction of o-benzoquinone dioxime 1 with aromatic and heteroaromatic substituted aldehydes 2 in the pres

A NOVEL RING TRANSFORMATION OF BENZOFUROXANES TO 1-HYDROXY-2-ARYL-BENZIMIDAZOLE-3-N-OXIDE WITH NITRONES

Borah, Harsha Narayan,Boruah, Romesh Chandra,Sandhu, Jagir Singh

, p. 1625 - 1628 (2007/10/02)

Benzofuroxanes (1) react with nitrones (2) to give 1-hydroxy-2-aryl-benzimidazole-3-N-oxide (3) in good yields.

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