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Trifluoro-methanesulfonic acid 3-((2S,4S)-3-benzoyl-2-tert-butyl-1,4-dimethyl-5-oxo-imidazolidin-4-ylmethyl)-phenyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

331233-13-7

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331233-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331233-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,2,3 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 331233-13:
(8*3)+(7*3)+(6*1)+(5*2)+(4*3)+(3*3)+(2*1)+(1*3)=87
87 % 10 = 7
So 331233-13-7 is a valid CAS Registry Number.

331233-13-7Downstream Products

331233-13-7Relevant academic research and scientific papers

Fluorination of aromatic compounds from 1-aryl-3,3-dimethyltriazenes and fluoride anions in acidic medium: 1. A model for 18F labelling

Pages, Thierry,Langlois, Bernard R.

, p. 321 - 327 (2001)

Decomposition of 1-aryl-3,3-dialkyltriazenes by strong and non-nucleophilic acids (CF3SO3H, H2SO4) can be achieved at 90°C in carbon tetrachloride, in the presence of sub-stoichiometric amounts of fluoride anions. Yields of fluoroarenes up to 39% (versus F-) can be reached under these conditions, within 15-30min and without contamination of the fluorinated compounds by inseparable by-products. Such conditions and results enable an adaptation to radiofluorination with 18F-.

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