5425-83-2 Usage
General Description
4-Nitro-1,8-Naphthalenedicarboxylic Acid, also known as 4-nitrophthalic acid, is a chemical compound with the molecular formula C12H7NO6. It is a nitro-substituted aromatic compound that is commonly used as a building block for the synthesis of various organic compounds and materials. 4-Nitro-1,8-Naphthalenedicarboxylic Acid is a yellow crystalline solid that is insoluble in water and most organic solvents. It is often used in the production of dyes, pigments, and pharmaceuticals, as well as in the manufacture of polymers and resins. 4-Nitro-1,8-Naphthalenedicarboxylic Acid is also used in the research and development of new materials and chemical processes due to its versatile reactivity and functional group chemistry.
Check Digit Verification of cas no
The CAS Registry Mumber 5425-83-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,2 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5425-83:
(6*5)+(5*4)+(4*2)+(3*5)+(2*8)+(1*3)=92
92 % 10 = 2
So 5425-83-2 is a valid CAS Registry Number.
InChI:InChI=1/C12H7NO6/c14-11(15)7-3-1-2-6-9(13(18)19)5-4-8(10(6)7)12(16)17/h1-5H,(H,14,15)(H,16,17)
5425-83-2Relevant articles and documents
Organic synthesis intermediate 4-nitro-1,8-naphthalenedicarboxylic acid synthesis method
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Paragraph 0017; 0021; 0023-0026, (2018/07/30)
The invention discloses an organic synthesis intermediate 4-nitro-1,8-naphthalenedicarboxylic acid synthesis method, which comprises: adding 2,7-dibromo-1,8-naphthalene dimethanol and a sodium nitratesolution into a reaction container, increasing the temperature of the solution, controlling the stirring speed, adding a benzyl propionate solution, continuously carrying out the reaction, adding erbium oxide powder in batches, continuously carrying out the reaction, adding an oxalic acid solution, adjusting the pH value, extracting multiple times with a o-bromophenol solution, washing multiple times with a 4-chlorophenol solution, re-crystallizing in a chlorobutane solution, and dehydrating with a dehydrating agent to obtain the finished product 4-nitro-1,8-naphthalenedicarboxylic acid.
