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o-nitrophenylacetaldehyde 2,4-dinitrophenylhydrazone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20973-92-6

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20973-92-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20973-92-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,7 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20973-92:
(7*2)+(6*0)+(5*9)+(4*7)+(3*3)+(2*9)+(1*2)=116
116 % 10 = 6
So 20973-92-6 is a valid CAS Registry Number.

20973-92-6Downstream Products

20973-92-6Relevant academic research and scientific papers

POLYMERISATION OF INDOLE. PART 2. A NEW INDOLE TRIMER

Ishii, Hisashi,Murakami, Keiko,Sakurada(nee Kawanabe), Eri,Hosoya, Katsuhiro,Murakami, Yasuoki

, p. 2377 - 2386 (2007/10/02)

Treatment of indole (1) with toluene-p-sulphonic acid in benzene provided the 2,3'-indole trimer (4), a positional isomer of the well known 3,3'-indole trimer (3).The structure of the new trimer (4) was established by comparitive studies with the trimers (3) and (4).

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