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64371-43-3

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64371-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64371-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,3,7 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64371-43:
(7*6)+(6*4)+(5*3)+(4*7)+(3*1)+(2*4)+(1*3)=123
123 % 10 = 3
So 64371-43-3 is a valid CAS Registry Number.

64371-43-3Downstream Products

64371-43-3Relevant articles and documents

Synthesis of various geometric and enantiomeric oxime O-(α and β methylcholinyl) ethers as potential anticholinergic agents

Huerta,Isaacson,Brown,Delgado

, p. 1120 - 1124 (1977)

Various enantiomeric and geometric oxime O (α and β methylcholinyl) ethers were synthesized as potential anticholinergic agents. The synthesis, separation, resolution, and structural characterization of these compounds are reported. The first step of the synthetic pathway involved an oxime formation, with subsequent O alkylation of the respective oxime with 2 chloro N,N dimethylpropylamine hydrochloride. The separation of the α and β structural isomers utilized vacuum fractional distillation and/or column chromatography, and the resolution of the enantiomers was accomplished via the formation of tartrate diastereoisomers. A preliminary pharmacological evaluation for anticholinergic activity was conducted using a rat ileum assay. Structure activity relationships, including some stereochemical properties and antimuscarinic activity, are discussed.

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