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121554-16-3

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121554-16-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121554-16-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,5 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 121554-16:
(8*1)+(7*2)+(6*1)+(5*5)+(4*5)+(3*4)+(2*1)+(1*6)=93
93 % 10 = 3
So 121554-16-3 is a valid CAS Registry Number.

121554-16-3Relevant articles and documents

Synthesis and bioevaluation of 1-phenyl-pyrazole-4-carboxylic acid derivatives as potent xanthine oxidoreductase inhibitors

Li, Jing,Wu, Fangping,Liu, Xingguo,Zou, Yake,Chen, Huixiong,Li, Zheng,Zhang, Lei

, p. 20 - 30 (2017)

A diverse library of 1-phenyl-pyrazole-4-carboxylic acid derivatives were synthesized and evaluated for their inhibitory potency against xanthine oxidoreductase (XOR) in vitro and vivo, and the structure-activity relationship (SAR) analyses were also pres

The Synthesis and Transition Temperatures of Some Lateral Cyano-Substituted-1,1':4',1''-terphenyls

Hird, Michael,Gray, George W.,Toyne, Kenneth J.

, p. 205 - 221 (2007/10/02)

In recent years we have used palladium-catalysed cross-coupling procedures to prepare a large number of very interesting lateral mono- and di-fluoro-substituted terphenyls.Similar methodology has been applied in the synthesis of lateral cyano-substituted terphenyls to assess the extent to which the mesophases of such systems can tolerate the larger cyano group; the synthetic routes to these compounds are discussed in detail.The compounds with the lateral cyano-substituent in the centre ring have very low melting points and liquid crystal phases exhibited (SC, SA and nematic) are dependent on the terminal substituents.The compounds with the cyano-substituent at the edge of the terphenyl core are still quite low melting and they have very wide SA ranges. Keywords: lateral cyano-substitution, 1,1':4',1''-terphenyls, palladium-catalysed cross-coupling

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