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144037-42-3

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144037-42-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144037-42-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,3 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 144037-42:
(8*1)+(7*4)+(6*4)+(5*0)+(4*3)+(3*7)+(2*4)+(1*2)=103
103 % 10 = 3
So 144037-42-3 is a valid CAS Registry Number.

144037-42-3Downstream Products

144037-42-3Relevant articles and documents

Transition-Metal-Free Alkylation/Arylation of Benzoxazole via Tf2O-Activated-Amide

Niu, Zhi-Jie,Li, Lian-Hua,Liu, Xue-Yuan,Liang, Yong-Min

supporting information, p. 5217 - 5222 (2019/11/13)

A transition-metal-free approach to the alkylation/arylation of benzoxazole was developed by employing Tf2O-activated-amide as the alkylating/arylating reagent. The mild reaction conditions, and particularly insensitivity to air and water, further enhance the synthetic potential in pharmaceutical synthesis. (Figure presented.).

The synthesis and the structure-activity relationships of some substituted benzoxazoles, oxazolo(4,5-b)pyridines, benzothiazoles and benzimidazoles as antimicrobial agents

Yalcin,Oren,Sener,Akin,Ucarturk

, p. 401 - 406 (2007/10/02)

The synthesis of a new series of 2,5-disubstituted benzoxazoles 4a-f, 2-substituted oxazolo(4,5-b)pyridines 5a, b, benzothiazoles 6a, b and benzimidazoles 7a, b is described in order to determine their antimicrobial activities and feasible structure-activ

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