25641-98-9 Usage
Structure
A derivative of phthalic acid with two chlorine atoms attached at the 3 and 5 positions of the benzene ring
Applications
a. Intermediate in the production of specialty polymers, resins, and plastics
b. Building block for the synthesis of dyes, pigments, and pharmaceuticals
Environmental impact
Environmentally persistent and can be found as a pollutant in water and soil
Safety and handling
Important to handle and dispose of with care to prevent environmental contamination and potential health hazards
Check Digit Verification of cas no
The CAS Registry Mumber 25641-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,4 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 25641-98:
(7*2)+(6*5)+(5*6)+(4*4)+(3*1)+(2*9)+(1*8)=119
119 % 10 = 9
So 25641-98-9 is a valid CAS Registry Number.
25641-98-9Relevant academic research and scientific papers
Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride
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, (2008/06/13)
Plychlorophthalimides, specifically, N-substituted tetrachlorophthalimides and N-substituted trichlorophthalimides may be treated with zinc and a base in aqueous soluction to yield, after acidification, the product 3,5-dichlorophthalic acid or salts there
