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2-Acetylamino-4-(4-cyclopropyl-phenyl)-5-nitro-thiophene-3-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

120109-81-1

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120109-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120109-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 120109-81:
(8*1)+(7*2)+(6*0)+(5*1)+(4*0)+(3*9)+(2*8)+(1*1)=71
71 % 10 = 1
So 120109-81-1 is a valid CAS Registry Number.

120109-81-1Relevant academic research and scientific papers

SYNTHESIS AND NITRATION OF SOME 4-CYCLOPROPYL- AND 4-(p-CYCLOPROPYLPHENYL)-2-AMINOTHIOPHENES

Surikova, T. P.,Zakharova, V. D.,Mochalov, S. S.,Shabarov, Yu. S.

, p. 860 - 864 (2007/10/02)

A number of cyclopropyl-substituted crotononitriles have been synthesized by a Knoevenagel condensation. Reaction of these compounds with sulfur in the presence of a base gives substituted 4-cyclopropyl- and 4-cyclopropylphenyl-2-aminothiophenes, while nitration of some acetylaminothiophenes with acetyl nitrate in acetic anhydride at low temperature gives the corresponding nitro derivatives.

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