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trimethyl 3-phenyl-8,9b-diazaindeno<1,6,7-bcd>azulene-1,2,9-tricarboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

143809-94-3

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143809-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143809-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,0 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143809-94:
(8*1)+(7*4)+(6*3)+(5*8)+(4*0)+(3*9)+(2*9)+(1*4)=143
143 % 10 = 3
So 143809-94-3 is a valid CAS Registry Number.

143809-94-3Downstream Products

143809-94-3Relevant academic research and scientific papers

Cycloaddition Reactions of 2-Acetylamino-, 2-Alkylamino-, 8-Ethylamino-, and 8-Acetylamino-1-azaazulenes with Dimethyl Acetylenedicarboxylate

Abe, Noritaka,Fukazawa, Yoshimasa,Hirai, Yoshimasa,Sakurai, Tosio,Urushido, Kunio,Kakehi, Akikazu

, p. 1784 - 1793 (2007/10/02)

The reactions of 2- and 8-(substituted amino)-1-azaazulenes with dimethyl acetylenedicarboxylate (DMAD) were investigated.Treatment of ethyl 2-acetylamino-1-azaazulene-3-carboxylate with DMAD in refluxing acetonitrile gave 9-ethyl 1,2,3-trimethyl 3a-azacy

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