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39513-12-7

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39513-12-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39513-12-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,1 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 39513-12:
(7*3)+(6*9)+(5*5)+(4*1)+(3*3)+(2*1)+(1*2)=117
117 % 10 = 7
So 39513-12-7 is a valid CAS Registry Number.

39513-12-7Relevant articles and documents

Hydrogenolysis of 1-Aminopyrazoles: Synthesis of Primary and Secondary Alkylamines

Adembri, G.,Camparini, A.,Ponticelli, F.,Scotton, M.

, p. 321 - 326 (2007/10/02)

The tautomerizable N-aminopyrazolone 9, the O-methyl 1 and N-methyl derivatives 4 were condensed with carbonyl compounds to give the alkenylaminopyrazoles 12, 2a-g and 5c, wich, under mild conditions, were hydrogenated to the corresponding alkylamino derivatives.The subesquent hydrogenation of the latter ones gave different results according to the structure of the starting material.The 5-methoxy-1-alkylaminopyrazoles 3a-g yielded the 5-methoxypyrazole 15 and the corresponding primary amines in good yields.On the contrary, N-methyl-1-alkylaminopyrazolone-5 6c gave 1-a lkylpyrazolone-3 8.

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