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55981-80-1

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55981-80-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55981-80-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,9,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55981-80:
(7*5)+(6*5)+(5*9)+(4*8)+(3*1)+(2*8)+(1*0)=161
161 % 10 = 1
So 55981-80-1 is a valid CAS Registry Number.

55981-80-1Downstream Products

55981-80-1Relevant articles and documents

A novel Zn-catalyzed hydroamination of propargylamides: A general synthesis of di- and tri-substituted imidazoles

Pews-Davtyan, Anahit,Beller, Matthias

supporting information; experimental part, p. 2152 - 2154 (2011/03/22)

Starting from commercially available amines and propargylamides a variety of substituted imidazoles were synthesized via a novel hydroamination- cyclization sequence. The target compounds are obtained in good to excellent yields in the presence of catalytic amounts of zinc triflate.

New synthesis procedure for imidazole derivatives

Eloy,Deryckere,Maffrand

, p. 602 - 606 (2007/10/05)

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