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2-Nitro-benzenesulfonic acid-(2-nitro-benzylidenehydrazide) is a complex organic compound that can be described as a derivative of benzenesulfonic acid, where a nitro group is attached to the benzene ring at the 2-position, and a 2-nitro-benzylidene group is linked to a hydrazide moiety. 2-nitro-benzenesulfonic acid-(2-nitro-benzylidenehydrazide) is characterized by its yellow crystalline appearance and is soluble in water. It is synthesized through a series of chemical reactions involving the formation of a Schiff base from 2-nitro-benzaldehyde and hydrazine, followed by the addition of benzenesulfonic acid. The compound has potential applications in the synthesis of various pharmaceuticals and dyes due to its unique chemical structure and reactivity.

6655-33-0

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6655-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6655-33-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,5 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6655-33:
(6*6)+(5*6)+(4*5)+(3*5)+(2*3)+(1*3)=110
110 % 10 = 0
So 6655-33-0 is a valid CAS Registry Number.

6655-33-0Downstream Products

6655-33-0Relevant academic research and scientific papers

Study of Photochromism in Benzenesulphonylhydrazones

Rawat, M. S. M.,Mal, S.

, p. 295 - 297 (2007/10/02)

Photochromic behaviour of benzenesulphonylhydrazone derivatives has been investigated in crystalline state, ethanol-ether (2:1) and PMMA matrix at liquid air temperature (-180 deg C).Benzenesulphonylhydrazones containing ortho-hydroxy group in the aldehydic ring showed reversible colour change on irradiation (365 nm) in solid state and rigid matrices in liquid air temperature.Whereas the presence of electron-withdrawing groups at C5-position in the salicylidene ring affected the formation of photo-coloured product.Hydrazones of o-nitrobenzaldehyde did not show photochromic change and irreversible spectra were obtained on irradiation of their methanolic solution at room temperature.

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