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1280787-24-7

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1280787-24-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280787-24-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,7,8 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1280787-24:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*8)+(3*7)+(2*2)+(1*4)=177
177 % 10 = 7
So 1280787-24-7 is a valid CAS Registry Number.

1280787-24-7Relevant articles and documents

Synthesis of novel 4-fluoro-2H-pyrazol-3-ylamines

Cocconcelli, Giuseppe,Ghiron, Chiara,Haydar, Simon,Micco, Iolanda,Zanaletti, Riccardo

experimental part, p. 2547 - 2555 (2010/09/18)

A new and efficient synthesis for the preparation of novel 4-fluoro-2H-pyrazol-3-ylamines is described. It involves the reaction of an acyl chloride with fluoroacetonitrile and sequential ring closure of the-fluoro-ketonitrile with hydrazine. Utilizing this synthetic protocol, we have synthesized a variety of 4-fluoro-2H-pyrazol-3-ylamines with different steric and electronic demands. Taylor & Francis Group, LLC.

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