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221461-77-4

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221461-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221461-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,4,6 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 221461-77:
(8*2)+(7*2)+(6*1)+(5*4)+(4*6)+(3*1)+(2*7)+(1*7)=104
104 % 10 = 4
So 221461-77-4 is a valid CAS Registry Number.

221461-77-4Relevant articles and documents

New 1,2,3-triazole derivatives (ureas, amides, urethanes) with a potential biological interest

Biagi,Giorgi,Livi,Scartoni,Martinotti,Calderone

, p. 350 - 356 (2007/10/03)

This paper reports the preparation of three series of 1,2,3-triazole derivatives bearing an ureido substituent (compounds 5a-h), a carboxamido substituent (compounds 6a-f) or an urethane substituent (compounds 7a-1). Some compounds were submitted to in vitro functional tests on guinea-pig isolated intestinal preparations and/or to in vitro antitumor and antiviral screening. The tested compounds showed no activity on guinea-pig ileum, except compound 7g, provided of contracturant properties; similarly, no anticancer or antiviral significant activity was found.

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