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1-(3-acetylacetonyl)-azo-2-hydroxybenzene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81557-97-3

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81557-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81557-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,5 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81557-97:
(7*8)+(6*1)+(5*5)+(4*5)+(3*7)+(2*9)+(1*7)=153
153 % 10 = 3
So 81557-97-3 is a valid CAS Registry Number.

81557-97-3Relevant academic research and scientific papers

Synthesis and antimicrobial activity of pyrazolinones and pyrazoles having benzothiazole moiety

Amir, Mohd.,Javed, Sadique A.,Hassan, Mohd. Zaheen

, p. 1261 - 1270 (2012)

A new class of 4-arylhydrazono-1-benzothiazolyl-3-methylpyrazolin-5-ones (3a-j) and 4-arylazo-1-benzothiazolyl-3,5-dimethylpyrazoles (4a-j) were designed as pharmacophore hybrids between pyrazolinone/pyrazole and benzothiazole moiety. The target molecules were efficiently synthesized by the cyclization of various oxobutyrates/pentane-2,4-dione derivatives with 6-chloro-2- hydrazinobenzothiazole in the presence of glacial acetic acid. The compounds were evaluated for their in vitro antimicrobial activity. Preliminary study of the structure-activity relationship revealed that electron-withdrawing groups in phenyl ring had a promising effect on the antimicrobial activity. Also, correlation study has been used to establish the relationships between the antibacterial activity and physicochemical parameter clogP. Springer Science+Business Media, LLC 2011.

Synthesis and characterization of polymer and polymer complex with some transition metal ions

Badr,Mohamed

experimental part, p. 43 - 48 (2010/09/05)

Polyamide derived from azo compound of o-amino phenol coupled with acetyl acetone, maleic anhydride acid and p-phenylene diamine were prepared. The prepared polyamide (PA) was refluxed with metal salts of transition metal ions include, Co+2, Cr

PHYSICOCHEMICAL STUDIES ON METAL COMPLEXES OF SOME o-HYDROXY AND o-CARBOXYPHENYLAZO-β-DIKETONES

Dessouki, Hassan Ali,Issa, Raafat Moustafa,Moustafa, Moustafa Mahmod

, p. 653 - 664 (2007/10/02)

The chelates of o-hydroxy and o-carboxyphenylazo-β-diketones, containing diacetyl or dibenzoyl or both acetyl and benzoyl (LH2) residues, with transition metal ions Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) (M) of the type

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