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189240-59-3

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189240-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189240-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,4 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189240-59:
(8*1)+(7*8)+(6*9)+(5*2)+(4*4)+(3*0)+(2*5)+(1*9)=163
163 % 10 = 3
So 189240-59-3 is a valid CAS Registry Number.

189240-59-3Downstream Products

189240-59-3Relevant articles and documents

Short formal syntheses of indole alkaloids of the uleine and Strychnos groups

Amat, Mercedes,Sathyanarayana, Swargam,Hadida, Sabine,Bosch, Joan

, p. 7123 - 7126 (1994)

The formal synthesis of ulcine-type (dasycarpidone, dasycarpidol, uleine, and 17-hydroxy-16,17-dihydrouleine) and Strychnos alkaloids belonging to both the Strychnan (tubifoline, tubifolidine, and 19,20-dihydroakuammicine) and Aspidospermatan (tubotaiwine) skeletal types from 3-(2-pyridyl)indoles is described.

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