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2-Butyne-1,4-dione, 1,4-bis(4-methoxyphenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

121239-89-2

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121239-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121239-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,3 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121239-89:
(8*1)+(7*2)+(6*1)+(5*2)+(4*3)+(3*9)+(2*8)+(1*9)=102
102 % 10 = 2
So 121239-89-2 is a valid CAS Registry Number.

121239-89-2Relevant academic research and scientific papers

ANODIC OXIDATION OF DIARYLACETYLENES AND DIARYLDIACETYLENES: ELECTROSYNTHESIS OF DIAROYL-STILBENES AND ACETYLENIC α- AND γ-DIKETONES

Cariou, Michel

, p. 799 - 808 (2007/10/02)

Diarylacetylenes and diaryldiacetylenes have been electrooxidized in acetonitrile through the use of a graphite plate anode, thus overcoming a very high passivation.Diarylacetylenes led mainly to 1,2-diaroyl-1,2-diaryl-ethylenes.Anodic oxidation of conjugated diaryldiacetylenes, at the same anode, led to a mixture of acetylenic α- and γ-diketones.This represents the very first synthesis of acetylenic α-diketones Ar-CO-CO-CC-Ar.

Electro-oxidation of Diarylacetylenes and Diaryldiacetylenes

Cariou, Michel,Simonet, Jacques

, p. 445 - 446 (2007/10/02)

Diarylacetylenes led to 1,2-diaroyl-1,2-diarylethylenes and diaryldiacetylenes led to a mixture of acetylenic α- and γ-diketones, by anodic oxydation in MeCN-LiClO4 on a graphite plate electrode.

Color Change (Yellow-Orange) of 4,6,7-Tri(alkoxy-substituted aryl)-1,2,5-thiadiazolopyridines in the Solid Phase

Mataka, Shuntaro,Takahashi, Kazufumi,Tashiro, Masashi,Lin, Wei-Hua,Iwasaki, Shin-ichi,et al.

, p. 215 - 219 (2007/10/02)

Reversible color change of 4,6,7-tri(alkoxy-substituted phenyl)-1,2,5-thiadiazolopyridines 5 in the solid state was observed: on grinding, yellow crystals of 5 became an orange amorphous solid which, on heating or washing with an appropriate solven

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