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2-Butynoic acid, 4,4'-[(4-bromophenyl)imino]bis-, dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

143570-89-2

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143570-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143570-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,7 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143570-89:
(8*1)+(7*4)+(6*3)+(5*5)+(4*7)+(3*0)+(2*8)+(1*9)=132
132 % 10 = 2
So 143570-89-2 is a valid CAS Registry Number.

143570-89-2Downstream Products

143570-89-2Relevant academic research and scientific papers

CONJUGATED PROCESSES OF METHOXYCARBONYLATION AND CYCLIZATION OF N,N-DI(2-PROPYNYL)HALOANILINES

Abdulganieva, S. A.,Manchuk, Z. N.,Zhaparova, Z. M.,Erzhanov, K. B.

, p. 146 - 152 (2007/10/02)

In the methoxycarbonylation of N,N-di(2-propynyl)haloanilines, together with N,N-di(3-methoxycarbonyl-2-propynyl)haloanilines, the substitution products of the terminal acetylenic hydrogen atoms , addition products are formed of the methoxycarbonyl group at one of the triple bonds of the above diesters, accompanied by their cyclization to dimethyl 1-halophenyl-5-methoxycarbonylmethylene-1,2,5,6-tetrahydropyridine-3,4-dicarboxylates.

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