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69545-78-4

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69545-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69545-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,4 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69545-78:
(7*6)+(6*9)+(5*5)+(4*4)+(3*5)+(2*7)+(1*8)=174
174 % 10 = 4
So 69545-78-4 is a valid CAS Registry Number.

69545-78-4Downstream Products

69545-78-4Relevant articles and documents

The Regiospecific Synthesis of N-Substituted Pyrazoles. I. 1- and 2-Substituted Indenopyrazol-4(1H)-ones

Lemke, Thomas L.,Sawhney, Kailash N.

, p. 1335 - 1340 (2007/10/02)

The reaction of enaminoketones (2 or 5) of 2-acyl-1,3-indandiones with unsymmetrical hydrazines results in the regiospecific synthesis of 1,3- or 2,3-disubstituted indenopyrazol-4(1H)-ones (4 or 7).The synthesis of the enaminoketones (2 or 5) is accomplished by way of amine addition to the 2-acyl-1,3-indandiones 8a-c or by reduction of the indenoisoxazole 9.The structural assignment of the isomeric indenopyrazoles 4 and 7 is based upon 1H-nmr chemical shifts.

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