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1338830-00-4

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1338830-00-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338830-00-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,8,3 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1338830-00:
(9*1)+(8*3)+(7*3)+(6*8)+(5*8)+(4*3)+(3*0)+(2*0)+(1*0)=154
154 % 10 = 4
So 1338830-00-4 is a valid CAS Registry Number.

1338830-00-4Relevant articles and documents

A Synthesis of 1H-Indazoles via a Cu(OAc)2-Catalyzed N-N Bond Formation

Chen, Cheng-Yi,Tang, Guangrong,He, Fengxian,Wang, Zhaobin,Jing, Hailin,Faessler, Roger

, p. 1690 - 1693 (2016)

A facile synthesis of 1H-indazoles featuring a Cu(OAc)2-catalyzed N-N bond formation using oxygen as the terminal oxidant is described. The reaction of readily available 2-aminobenzonitriles with various organometallic reagents led to o-aminoar

Synthesis of o -(dimethylamino)aryl ketones, acridones, acridinium salts, and 1 H -indazoles by the reaction of hydrazones and arynes

Dubrovskiy, Anton V.,Larock, Richard C.

, p. 11232 - 11256 (2013/02/23)

A novel, efficient route to biologically and pharmaceutically important o-(dimethylamino)aryl ketones, acridones, acridinium salts, and 1H-indazoles has been developed starting from readily available hydrazones of aldehydes and o-(trimethylsilyl)aryl triflates. The reaction proceeds through arynes under mild conditions, tolerates a wide range of functional groups, and provides the final products in good to excellent yields.

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