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3-ethyl-5-methyl-2,4,6-trinitro-phenol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

27990-23-4

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27990-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27990-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27990-23:
(7*2)+(6*7)+(5*9)+(4*9)+(3*0)+(2*2)+(1*3)=144
144 % 10 = 4
So 27990-23-4 is a valid CAS Registry Number.

27990-23-4Upstream product

27990-23-4Downstream Products

27990-23-4Relevant academic research and scientific papers

Preparation of nitrophenols

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, (2008/06/13)

A process for the preparation of nitrophenols by adding over a period of time a suspension containing from about 4 to about 20 per cent weight/volume of nitrosated phenol to a nitric acid solution containing between 45 and 100 per cent by weight of nitric acid, said solution being maintained at a temperature in the range from about 45° to 100°C.

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