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139229-59-7

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139229-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139229-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,2 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139229-59:
(8*1)+(7*3)+(6*9)+(5*2)+(4*2)+(3*9)+(2*5)+(1*9)=147
147 % 10 = 7
So 139229-59-7 is a valid CAS Registry Number.

139229-59-7Relevant articles and documents

Pd(II)-Catalyzed Enantioselective C(sp3)-H Arylation of Free Carboxylic Acids

Shen, Peng-Xiang,Hu, Liang,Shao, Qian,Hong, Kai,Yu, Jin-Quan

supporting information, p. 6545 - 6549 (2018/05/23)

A monoprotected aminoethyl amine chiral ligand based on an ethylenediamine backbone was developed to achieve Pd-catalyzed enantioselective C(sp3)-H arylation of cyclopropanecarboxylic and 2-aminoisobutyric acids without using exogenous directing groups. This new chiral catalyst affords new disconnection for preparing diverse chiral carboxylic acids from simple starting materials that are complementary to the various ring forming approaches.

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