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113283-89-9

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113283-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113283-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,8 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 113283-89:
(8*1)+(7*1)+(6*3)+(5*2)+(4*8)+(3*3)+(2*8)+(1*9)=109
109 % 10 = 9
So 113283-89-9 is a valid CAS Registry Number.

113283-89-9Relevant articles and documents

Microwave-assisted carbamoylation of amines

Azzena, Ugo,Dettori, Giovanna,Pisano, Luisa,Pittalis, Mario

, p. 3623 - 3634 (2008/03/13)

The influence of microwave irradiation on the reaction of various amines with benzyl chloroformate and di-tert-butyl dicarbonate was investigated. Microwave irradiation was successfully applied to the carbamoylation of several nonfunctionalized and functionalized amines, including amino acids and nucleobases, leading to satisfactory to high product conversion within very short reaction times. Copyright Taylor & Francis Group, LLC.

Selective Protection of Mixed Primary-Secondary Amines. Simple Preparation of N1,N8-Bis(t-butoxycarbonyl)spermidine

Lurdes, M.,Almeida, S.,Grehn, Leif,Ragnarsson, Ulf

, p. 1250 - 1251 (2007/10/02)

A new, simple, and efficient preparative procedure of a potentially wide scope for the selective protection of mixed primary-secondary amines, based on acylation followed by exhaustive t-butoxycarbonylation is presented.

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