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8-Hydrazono-3-methyl-1,8-dihydrocycloheptapyrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

72030-43-4

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72030-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72030-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,3 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72030-43:
(7*7)+(6*2)+(5*0)+(4*3)+(3*0)+(2*4)+(1*3)=84
84 % 10 = 4
So 72030-43-4 is a valid CAS Registry Number.

72030-43-4Relevant academic research and scientific papers

Reactions of 3-Acetyl-2-aminotropones and 2-Acetyl-7-aminotropones with Hydrazine

Imafuku, Kimiaki,Shimazu, Akiko

, p. 653 - 656 (2007/10/02)

3-Acetyl-2-aminotropone (1a) reacted with hydrazine to afford its hydrazone (3a) and 3-methyl-1,8-dihydrocycloheptapyrazol-8-one (4), while methylamino- and pyrrolidinyl-substituted compounds 1b and 1c gave only the cyclized compound (4).Reactions of 2-acetyl-7-aminotropones 2a-d gave their hydrazones 5a-d and the hydrazone 6.The hydrazones 3a and 5b were heated in acetic acid to give 4 and 3-methyl-8-methylamino-1,2-diazaazulene (7), respectively.Several reactions of 4 and 6 were also described.

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