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3-hydroxy-1-phenylpyrazolo<3,4-d>pyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91136-05-9

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91136-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91136-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,3 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91136-05:
(7*9)+(6*1)+(5*1)+(4*3)+(3*6)+(2*0)+(1*5)=109
109 % 10 = 9
So 91136-05-9 is a valid CAS Registry Number.

91136-05-9Downstream Products

91136-05-9Relevant academic research and scientific papers

Heterocyclen-Synthesen mit Monothiomalonsaeure-Amiden: Synthese von 3-Oxo-2,3-dihydroisothiazolopyridinen und 3-Oxo-2,3-dihydroisothiazolopyrimidinen

Schaper, Wolfgang

, p. 861 - 867 (2007/10/02)

The monothiomalonic acid amides 5, prepared from cyanoacetamides 4 and hydrogen sulphide, react with diketones 6 or aldehyde derivatives 7 to give the 2-thioxo-1,2-dihydropyridine-3-carboxamides 8 which can be cyclised to the 3-oxo-2,3-dihydroisothiazolo

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