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2-(4-Phenyl-thiazol-2-yl)-phenylamine; compound with perchloric acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

75221-01-1

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75221-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75221-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,2 and 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75221-01:
(7*7)+(6*5)+(5*2)+(4*2)+(3*1)+(2*0)+(1*1)=101
101 % 10 = 1
So 75221-01-1 is a valid CAS Registry Number.

75221-01-1Relevant academic research and scientific papers

N-Quaternary Heterocyclics : Part X- Acid-catalysed Transformation of 2-(4-Quinazolinylthio)ketones to 2-ketones and 2-(o-Aminophenyl)thiazoles

Singh, Harjit,Gandhi, C. S.,Bal, M. S.

, p. 17 - 20 (2007/10/02)

2-(4-Quinazolinylthio)acetophenones (IV) when treated with a small amount of conc. sulphuric acid at room temperature or polyphosphoric acid at 130-40 deg C undergo sulphur extrusion and in the presence of perchloric acid afford 4-phenacylquinazolinium perchlorates (V).However, with an excess of conc.H2SO4, 3-arylthiazoloquinazolinium perchlorates (I), are also formed.Compounds (IV) on heating with perchloric or hydrochloric acid furnish 2-(o-aminophenyl)thiazoles (II) in synthetically useful yields.

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