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170169-51-4

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170169-51-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170169-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,1,6 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 170169-51:
(8*1)+(7*7)+(6*0)+(5*1)+(4*6)+(3*9)+(2*5)+(1*1)=124
124 % 10 = 4
So 170169-51-4 is a valid CAS Registry Number.

170169-51-4Relevant articles and documents

Synthesis of conjugated (E,E)-1,3-diene-containing troponoid-based compounds

Gao, Wen-Tao,Yan, Yan,Li, Yang

, p. 691 - 698 (2013/07/26)

Through exploration of the electrophilic substitution reaction of 3-((2E,4E)-5-phenylpenta-2,4-dienoyl)-2-hydroxy-2,4,6-cycloheptatrien-1-one (3-((2E,4E)-5-phenylpenta-2,4-dienoyl)tropolone) with halogen and diazonium salts as well as the nucleophilic cyclisation reaction with hydroxylamine hydrochloride and substituted phenylhydrazine hydrochlorides by employing our reliable methods, we have synthesised a series of new (E,E)-1,3-diene-bearing troponoid-based compounds. All the newly synthesised molecules represent an issue of great interest, since the presence of conjugated 1,3-diene moiety can be developed further via other reactions.

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