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Carbamic acid, (4-ethynylphenyl)-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139957-92-9

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139957-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139957-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139957-92:
(8*1)+(7*3)+(6*9)+(5*9)+(4*5)+(3*7)+(2*9)+(1*2)=189
189 % 10 = 9
So 139957-92-9 is a valid CAS Registry Number.

139957-92-9Relevant academic research and scientific papers

Chemoselective synthesis of carbamates using CO2 as carbon source

Riemer, Daniel,Hirapara, Pradipbhai,Das, Shoubhik

, p. 1916 - 1920 (2016)

Synthesis of carbamates directly from amines using CO2 as the carbon source is a straightforward and sustainable approach. Herein, we describe a highly effective and chemoselective methodology for the synthesis of carbamates at room temperature and atmosp

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