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21855-16-3

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21855-16-3 Usage

General Description

Ethyl 2,6-pyridinedicarboxylateMono, also known as ethyl 2,6-pyridinedicarboxylate, is a chemical compound that is commonly used as a building block in the synthesis of pharmaceuticals and agrochemicals. It is a diester derivative of pyridine-2,6-dicarboxylic acid and is often utilized as a precursor in the production of various drugs and pesticides. Ethyl2,6-PyridinedicarboxylateMono is known for its ability to participate in a range of chemical reactions, making it a versatile and valuable intermediate in organic synthesis. It is also used in the manufacturing of dyes, pigments, and other industrial products. Overall, ethyl 2,6-pyridinedicarboxylateMono plays a crucial role in the synthesis of numerous important compounds and is widely utilized in the pharmaceutical and agricultural industries.

Check Digit Verification of cas no

The CAS Registry Mumber 21855-16-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21855-16:
(7*2)+(6*1)+(5*8)+(4*5)+(3*5)+(2*1)+(1*6)=103
103 % 10 = 3
So 21855-16-3 is a valid CAS Registry Number.
InChI:InChI=1/C9H9NO4/c1-2-14-9(13)7-5-3-4-6(10-7)8(11)12/h3-5H,2H2,1H3,(H,11,12)

21855-16-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 6-ethoxycarbonylpyridine-2-carboxylic acid

1.2 Other means of identification

Product number -
Other names 6-(Ethoxycarbonyl)picolinic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21855-16-3 SDS

21855-16-3Relevant articles and documents

Synthesis, crystal structure, and different local conformations of pyridine-imide oligomers

Zhu, Hengheng,He, Weiwei,Zhan, Chuanlang,Li, Xiao,Guan, Zisheng,Guo, Fengqi,Yao, Jiannian

experimental part, p. 8458 - 8464 (2011/11/13)

In this article, we report a new approach toward synthesis of pyridine-imide oligomers (PIOs). Using this approach, both dimer and trimer were one-pot synthesized from acylation of monomeric monoamide with monomeric dichloride. The yield of trimer was dependent on the alkoxyl terminals: it was 30% for methoyl group, whereas it was 95% for 3-chloro-1-propoxyl terminal. Acylation of dimeric monoamide with monomeric dichloride produced trimer, tetramer, and pentamer in a yield of 34%, 33%, and 28%, respectively. The synthesis was proposed to be mediated through an exchange between pyridine-2-carboxamide and pyridine-2-carbonyl chloride, both forming intramolecular or intermolecular hydrogen-bonds between pyridine-nitrogen and pyridine-2-amide hydrogen atoms. Crystal structure from three trimers with different terminal groups was reported. Analysis on the crystal structures revealed that these three trimers had different local conformations. The different local conformations were originated from the structural tunability of the imide unit in either the coplanarity or bond parameters.

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