169739-72-4 Usage
Derivative of
Benzenedicarboxylic acid (phthalic acid)
Functional group
Hydrazino
Common uses
Production of pharmaceuticals
Production of dyes
Production of polymers
Application in
Organic synthesis (to introduce hydrazino group into organic compounds)
Medicinal chemistry
Materials science
Safety precautions
Potentially harmful if ingested or inhaled
Can cause skin and eye irritation
Handle with care
Check Digit Verification of cas no
The CAS Registry Mumber 169739-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,3 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 169739-72:
(8*1)+(7*6)+(6*9)+(5*7)+(4*3)+(3*9)+(2*7)+(1*2)=194
194 % 10 = 4
So 169739-72-4 is a valid CAS Registry Number.
169739-72-4Relevant articles and documents
METHOD FOR MANUFACTURING HYDRAZINO ARYL CARBOXYLIC ACID
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Paragraph 0026, (2016/11/17)
PROBLEM TO BE SOLVED: To provide a method simple and advantageous even in performance on an industrial scale in production of hydrazino aryl carboxylic acids useful as a functional intermediate in pharmaceutical and agrochemical fields, or the like. SOLUTION: The method for manufacturing hydrazino aryl carboxylic acids comprises: smoothly proceeding a reaction by reacting carboxy aryl halides or carboxy aryl sulfones with hydrazines in the presence of water using copper, copper salts and/or palladium, palladium salts and bases; and obtaining hydrazino aryl carboxylic acids by simply separating crystals by acid precipitation operation, and can be performed on an industrial scale. COPYRIGHT: (C)2015,JPOandINPIT
