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N,N'-bis(thiophene-2-carbonyl)piperazine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

31350-28-4

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31350-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31350-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,5 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31350-28:
(7*3)+(6*1)+(5*3)+(4*5)+(3*0)+(2*2)+(1*8)=74
74 % 10 = 4
So 31350-28-4 is a valid CAS Registry Number.

31350-28-4Downstream Products

31350-28-4Relevant academic research and scientific papers

HMDS-promoted in situ amidation reactions of carboxylic acids and amines

Chou, Wen-Chih,Chou, Ming-Chen,Lu, Yann-Yu,Chen, Shyh-Fong

, p. 3419 - 3422 (2007/10/03)

A number of N-acylalkylenediamines were synthesized in high yields by in situ monoamidation of carboxylic acids with diamines. The amidation reactions were carried out simply by heating the substrates at 110 °C for 5-24 h in the presence of HMDS.

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