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2-Propenoic acid, 3-amino-2-cyano-3-[5-cyano-2-[(dicyanomethyl)thio]-4-hydroxy-3-thienyl ]-, ethyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

170377-20-5

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170377-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170377-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,3,7 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 170377-20:
(8*1)+(7*7)+(6*0)+(5*3)+(4*7)+(3*7)+(2*2)+(1*0)=125
125 % 10 = 5
So 170377-20-5 is a valid CAS Registry Number.

170377-20-5Downstream Products

170377-20-5Relevant academic research and scientific papers

The Reaction of Carbon Disulfide with Diethyl 3-Amino-2-cyano-2-penten-1,5-dicarboxylate: A Convenient Synthesis of Polyfunctionally Substituted Thiophenes andd Their Fused Derivatives

Sherif, S. M.,Abdel-Sayed, N. I.,El-Kousy, S. M.,Mohareb, R. M.

, p. 601 - 608 (2007/10/02)

Carbon disulfide added to the active methylene group in 1 in basic DMF at room temperature to yield the non-isolable 1:1 adduct 2.In-situ cyclization of the latter with some α-bromo compounds afforded the corresponding polyfunctionally substituted thiophenes 5.The reactivity of 5 towards a variety of reagents was studied.Chemical and spectroscopic evidences for the structure of the new compounds are provided.Keywords: Thiophene; Thienodipyrazole; Thienopyrazole

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