57124-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57124-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,2 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57124-21:
(7*5)+(6*7)+(5*1)+(4*2)+(3*4)+(2*2)+(1*1)=107
107 % 10 = 7
So 57124-21-7 is a valid CAS Registry Number.
57124-21-7Relevant articles and documents
Trifluoromethyl substituted analogs of quinine and quinidine
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, (2008/06/13)
Trifluoromethyl substituted analogs of quinine and quinidine are prepared by reacting a 4-quinolyllithium compound with a 4,5-erythro-5-ethyl-(or vinyl)-quinuclidine-2 ξ-carboxaldehyde or the corresponding quinuclidine-2 ξ-carboxylic acid alkyl ester. The end products are useful as antimalarial agents.