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20443-03-2

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20443-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20443-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,4 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20443-03:
(7*2)+(6*0)+(5*4)+(4*4)+(3*3)+(2*0)+(1*3)=62
62 % 10 = 2
So 20443-03-2 is a valid CAS Registry Number.

20443-03-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-oxo-1,4-dihydro-pyridine-2,6-dicarboxylic acid dimethyl ester

1.2 Other means of identification

Product number -
Other names chelidamic acid dimethyl ester

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:20443-03-2 SDS

20443-03-2Relevant articles and documents

Synthetic Approaches to the Bifunctional Chelators for Radio nuclides Based on Pyridine-Containing Azacrown Compounds

Fedorova, Olga A.,Shchukina, Anna A.,Zubenko, Anastasia D.

, p. 1087 - 1095 (2020)

Synthetic ways to introduce functional groups (CO 2 Me, CO 2 H, OCH 2 CO 2 H, OCH 2 C≡CH, CH 2 OH, CH 2 Cl, CH 2 N 3) into the pyridine ring of pyridine-containing azacrown compounds are described. These groups were introduced at position-4 of the pyridine ring, while keeping the macrocyclic carboxylate groups available for metal chelation. The derivatives were obtained by macrocyclization reaction of 4-substituted, trimethyl pyridine-2,4,6-tricarboxylate or by modification of methyl ester group in pyridine fragment of macrocycles. Obtained derivatives can be applied for preparing radiotherapeutic agents by conjugation to different vector biomolecules for targeted drug delivery to cancer cells without damaging healthy tissue.

Picolinamide oligomers, preparation method and applications thereof

-

Paragraph 0024; 0047; 0050, (2018/08/28)

The invention belongs to the technical field of membrane separation, and more specifically relates to picolinamide oligomers, a preparation method and applications thereof. The picolinamide oligomerscomprise the following characteristics: 1. the oligomers

The Synthesis of Group 10 and 11 Metal Complexes of 3,6,9-Trithia-1-(2,6)-pyridinacyclodecaphane and Their Use in A3-Coupling Reactions

Rasheed, Omer K.,Bawn, Carlo,Davies, David,Raftery, James,Vitorica-Yrzebal, I?igo,Pritchard, Robin,Zhou, Huimin,Quayle, Peter

supporting information, p. 5252 - 5261 (2017/09/29)

The reaction between 3,6,9-trithia-1(2,6)-pyridinacyclodecaphane and representative group 10 and 11 metal salts [Cu(NO3)2, NiCl2 or Ag(CF3CO2)] afforded 1:1 complexes, which in the case of CuII and AgI were characterised by single-crystal X-ray crystallography. The catalytic activity of these complexes in A3-coupling reactions between aldehydes, terminal alkynes and amines was assessed in both protic (water) and aprotic (toluene) media. These A3-reactions prove to be more efficient, proceed with lower catalyst loadings and with faster reaction rates, when conducted in a focused microwave reactor as compared to the same reactions promoted by standard, thermal, modes of activation.

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