2045-70-7 Usage
Description
2-Amino-3,5-dinitrothiophene is an organic compound characterized by the presence of an amino group and two nitro groups attached to a thiophene ring. It exhibits unique chemical properties due to its structure, making it a versatile intermediate in the synthesis of various compounds.
Uses
Used in Textile Industry:
2-Amino-3,5-dinitrothiophene is used as a key intermediate in the preparation of high-dye-uptake-rate disperse dye compounds. These dyes are specifically designed for hydrophobic fiber and fabric dyeing, providing enhanced coloration and improved dye uptake on non-absorbent materials. This application is crucial for achieving vibrant and long-lasting colors in textiles, particularly in synthetic fibers such as polyester, nylon, and acrylic.
Check Digit Verification of cas no
The CAS Registry Mumber 2045-70-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2045-70:
(6*2)+(5*0)+(4*4)+(3*5)+(2*7)+(1*0)=57
57 % 10 = 7
So 2045-70-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H3N3O4S/c5-4-2(6(8)9)1-3(12-4)7(10)11/h1H,5H2
2045-70-7Relevant articles and documents
The synthesis of highly active thiophene ring-containing chromophore components for photonic polymers based on a newly designed route
Yuquan, Shen,Yuxia, Zhao,Zao, Li,Jianghong, Wang,Ling, Qiu,Shixiong, Liu,Jianfeng, Zhai,Jiayun, Zhou
, p. 3691 - 3695 (2007/10/03)
2-Aminothiophene derivatives are the key intermediates for the present synthesis. It is known that the synthesis of 2-aminothiophene is troublesome although it is a rather simple heterocycle. In this work, an early report was newly developed as a basis for the efficient synthesis of thiophene-ring-containing chromophore components for photonic polymers. 2-Amino-5-nitrothiophene and 2-amino-3,5-dinitrothiophene were synthesized in excellent yield. After diazotization, the 2-aminothiophene derivatives were directly treated with N-phenyldiethanolamine to afford two-electron push-pull compounds. A similar styryl compound was also prepared. All of these chromophore molecules have further polymerizable hydroxy groups on one end of the molecule. These compounds are currently showing interesting potential in making highly sensitive, nonlinear optical polymeric materials. The Royal Society of Chemistry 1999.