29389-44-4 Usage
Physical form
Yellow to brown crystalline powder
Sensitivity
Highly sensitive to air and moisture
Reaction with carbonyl compounds
Reacts with aldehydes and ketones to form brightly colored hydrazones
Measurement method
The formed hydrazones can be measured spectrophotometrically
Uses
Commonly used in the identification and quantification of carbonyl compounds, detection of certain antibiotics, and a key component in the Brady method for the determination of carbonyl compounds in ambient air samples
Precautions
Toxic if ingested, inhaled, or absorbed through the skin (handle with caution)
Check Digit Verification of cas no
The CAS Registry Mumber 29389-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,3,8 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 29389-44:
(7*2)+(6*9)+(5*3)+(4*8)+(3*9)+(2*4)+(1*4)=154
154 % 10 = 4
So 29389-44-4 is a valid CAS Registry Number.
29389-44-4Relevant academic research and scientific papers
Synthesis and spectral comparison of electronic and molecular properties of some hydrazines and hydrazyl free radicals
Ionita, Petre,Lete, Cecilia,Madalan, Augustin,Matache, Mihaela,Patrascu, Bianca,Paun, Anca,Popescu, Codruta
, (2020/08/28)
Continuing our work on hydrazyl free radicals, five triphenylhydrazine derivatives, one a new compound, were synthesized to compare the electronic and molecular properties of these compounds, study the influence of substituents on the phenyl rings, and compare their properties with the parent hydrazines and corresponding anions. These hydrazines demonstrate both acid-base and redox properties. The hydrazine proton can be removed by base, yielding the corresponding anion and both the hydrazines and their anions can be oxidized to the corresponding hydrazyl free radicals. ESR spectra confirmed their formation and X-ray crystallography of one compound confirmed their structures.
