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34840-50-1

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34840-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34840-50-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,8,4 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34840-50:
(7*3)+(6*4)+(5*8)+(4*4)+(3*0)+(2*5)+(1*0)=111
111 % 10 = 1
So 34840-50-1 is a valid CAS Registry Number.

34840-50-1Relevant articles and documents

Synthesis and exploration of 2-morpholino-4-phenylthiazol-5-yl acrylamide derivatives for their effects against carbonic anhydrase I, II, IX and XII isoforms as a non-sulfonamide class of inhibitors

Swain, Baijayantimala,Singh Digwal, Chander,Angeli, Andrea,Alvala, Mallika,Singh, Priti,Supuran, Claudiu T.,Arifuddin, Mohammed

, (2019/09/12)

Novel series of 2-morpholino-4-phenylthiazol-5-yl acrylamide derivatives (8a–s) have been synthesized and explored as a non-sulfonamide class of carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The newly synthesized molecules were evaluated for their CA in

Synthesis of mono- and N,N-disubstituted thioureas and N-acylthioureas

Katritzky, Alan R.,Kirichenko, Nataliya,Rogovoy, Boris V.,Kister, Jeremy,Tao, Hui

, p. 1799 - 1805 (2007/10/03)

1-Benzotriazole-1-carbothioamide (2), prepared from 1-cyanobenzotriazole (1) and hydrogen sulfide, reacts with amines to give thioureas 3a-e. Reactions of (benzotriazol-1-yl)carboximidamides 4a-d,f-j and acyl- 5a-f,i-k or arylaminocarbonyl- 5g,h (benzotri

N'-Substituted N-Acyl- and N-Imidoyl-thioureas: Preparation and Conversion of N',N'-Disubstituted Compounds into 2-(N,N-Disubstituted Amino)thiazol-5-yl Ketones

Brindley, Jocelyn C.,Caldwell, Jennifer M.,Meakins, G. Denis,Plackett, Simon J.,Price, Susan J.

, p. 1153 - 1158 (2007/10/02)

Known methods were developed to give convenient general procedures for preparing N-acyl-N'-mono- and -N',N'-disubstituted thioureas from acid chlorides, and related N-imidoyl thioureas from imidoyl chlorides.In the products from three acid chlorides and ammonium thiocyanate the acyl isothiocyanates did not appear to be accompained by the isomeric thiocyanates.Treatment of N-(anilino)benzylidene-N',N'-disubstituted thioures with chloroacetone in the presence of triethylamine leads to 5-acetyl-4-phenyl-2-(N,N-disubstituted amino)thiazoles.In contrast, the corresponding N-benzoyl thioureas form only small amounts of these compounds; the main products are the 5-benzoyl-4-methyl isomers, and this unexpected outcome requires a revision of the literature.It is thought that formation of the 5-benzoyl-4-methylthiazoles involves N-C(4) fission of a cyclic intermediate to give an open-chain intermediate in which nucleophilic attack can occur at either the acetyl or the benzoyl group.One of the latter intermediates was generated directly from 2-acetyl-2-bromoacetophenone and N-methyl-N-phenylthiourea, and found to give the 5-benzoyl-4-methyl- and 5-acetyl-4-phenyl-thiazoles as the major and minor products, respectively.

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