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5-bromo-2,3-indoledione 3-oxime is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

900516-52-1

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900516-52-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900516-52-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,1 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 900516-52:
(8*9)+(7*0)+(6*0)+(5*5)+(4*1)+(3*6)+(2*5)+(1*2)=131
131 % 10 = 1
So 900516-52-1 is a valid CAS Registry Number.

900516-52-1Relevant academic research and scientific papers

Acylating and arylsulfonylating ability of O-derivatives of isatin 3-oximes

Stankevicius,Terentiev,Janushene,Savickas

, p. 98 - 104 (2005)

O-Acyl and O-arylsulfonyl derivatives of isatin 3-oximes have been synthesized and their interaction with alcohols and amines has been investigated. It was established that none of the esters of 1-substituted isatin 3-oximes reacted with the indicated nucleophiles. 1-Unsubstituted O-aryl and O-arylsulfonyl derivatives react with amines as acylating agents even at room temperature, but O-acetyl derivatives only on heating. Acylamides or arylsulfamides respectively are formed in this way. O-Acyl derivatives do not react with alcohols at room temperature. Only O-benzoyl derivatives form ethyl benzoate on heating in ethanol. A comparative analysis of mass spectrometric data on the processes of acylation and arylsulfonylation is given.

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