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221292-42-8

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221292-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221292-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,2,9 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 221292-42:
(8*2)+(7*2)+(6*1)+(5*2)+(4*9)+(3*2)+(2*4)+(1*2)=98
98 % 10 = 8
So 221292-42-8 is a valid CAS Registry Number.

221292-42-8Relevant articles and documents

Soluble ferrocene conjugates for incorporation into self-assembled monolayers

Yu,Chong, Yoochul,Kayyem, Jon Faiz,Gozin, Michael

, p. 2070 - 2079 (2007/10/03)

A series of phenylethynyl oligomers (I-V) possessing a ferrocene and thiol at each termini have been synthesized. These oligomers have been designed to overcome the inherent insolubility of this class of complexes by substitution at the phenyl groups with methyl and propoxy substituents. Several new reactions for preparing arenethiol-protected compounds are described. Interestingly, the generation of an arenethiol anion during base- or fluoride-catalyzed deprotection has been characterized.

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