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3,4,5-Trichlor-1-methyl-1H-pyrrol-2-carbonsaeure-methylester, also known as methyl 3,4,5-trichloro-1-methylpyrrole-2-carboxylate, is a chemical compound with the molecular formula C7H6Cl3NO2. It is a derivative of pyrrole, a heterocyclic aromatic organic compound consisting of a five-membered ring with alternating double bonds and one nitrogen atom. In this specific compound, the pyrrole ring is substituted with a methyl group at the 1-position, and the 2-position is connected to a carboxylate group, which is further esterified with a methyl group. The compound also features three chlorine atoms attached to the pyrrole ring at the 3, 4, and 5 positions. This chemical is primarily used as an intermediate in the synthesis of various agrochemicals and pharmaceuticals, particularly in the production of herbicides and insecticides. Due to its complex structure and potential applications, it is essential to handle 3,4,5-Trichlor-1-methyl-1H-pyrrol-2-carbonsaeure-methylester with care and follow proper safety protocols.

1200-94-8

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1200-94-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1200-94-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,0 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1200-94:
(6*1)+(5*2)+(4*0)+(3*0)+(2*9)+(1*4)=38
38 % 10 = 8
So 1200-94-8 is a valid CAS Registry Number.

1200-94-8Relevant academic research and scientific papers

Amino Acids, 9 - Reactions of 5-Oxoproline Derivatives with Phosphorus Pentachloride - Synthesis of Chloro-pyrrole-2-carboxylic Acid Derivatives

Effenberger, Franz,Mueller, Wolfgang,Isak, Heinz

, p. 45 - 54 (2007/10/02)

N-Benzyl-4,5-dichloro-1H-pyrrole-2-carboxylic esters 6 are formed from N-benzyl-5-oxoproline esters 5 and PCl5 via differently chlorinated intermediates.The N-benzhydryl- L-3 and N-acyl-5-oxoproline esters L-4, on the other hand, suffer cleavage of the N-substituent in the course of this reaction sequence to give L-4,4,5-trichloro-3,4-dihydro-2H-pyrrole-2-carboxylic esters 18, which are dehydrohalogenated in the presence of base, yielding 4,5-dichloro-1H-pyrrole-2-carboxylic esters 20.These reactions provide the best access to 4,5-dichloro-1H-pyrrole-2-carboxylic acid derivatives which, in turn, can serve as precursors in the synthesis of pyoluteorin type compounds.

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