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184221-05-4

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184221-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 184221-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,2,2 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 184221-05:
(8*1)+(7*8)+(6*4)+(5*2)+(4*2)+(3*1)+(2*0)+(1*5)=114
114 % 10 = 4
So 184221-05-4 is a valid CAS Registry Number.

184221-05-4Relevant articles and documents

A unified strategy for the synthesis of phenanthroizidine alkaloids: Preparation of sterically congested pyridines

Ciufolini, Marco A.,Roschangar, Frank

, p. 12082 - 12089 (2007/10/03)

Total syntheses of the representative phenanthroizidine alkaloids, tylophorine and antofine, and of their seco congeners, septicine and julandine, have been completed from sterically congested 3,4-diarylpyridines prepared by a modified Knoevenagel-Stobbe

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