52239-04-0 Usage
Description
Methyl N-ethyl-N-[4-[(5-nitro-2,1,benzisothiazol-3-yl)azo]phenyl]-beta-alaninate is a complex organic compound with a unique chemical structure. It is characterized by its ability to absorb light in the blue and red regions of the visible spectrum, making it potentially useful in various applications.
Uses
Used in Textile Industry:
Methyl N-ethyl-N-[4-[(5-nitro-2,1-benzisothiazol-3-yl)azo]phenyl]-beta-alaninate is used as a colorant for textiles, providing excellent light fastness and resistance to fading and staining. It is particularly effective in maintaining color intensity under various conditions, such as exposure to sunlight, washing, and perspiration.
Used in Standard (Vinegar fiber):
Methyl N-ethyl-N-[4-[(5-nitro-2,1-benzisothiazol-3-yl)azo]phenyl]-beta-alaninate is used as a colorant for vinegar fiber, a type of regenerated cellulose fiber. It offers high color fastness and resistance to fading and staining, making it suitable for use in high-quality textiles.
Used in ISO Standards:
Methyl N-ethyl-N-[4-[(5-nitro-2,1-benzisothiazol-3-yl)azo]phenyl]-beta-alaninate meets the ISO standards for color fastness, with ratings ranging from 3-6. This ensures that textiles treated with this compound maintain their color and resist fading and staining under various conditions, such as exposure to light, washing, and perspiration.
Preparation
5-Nitro-1,3-dihydrobenzo[c]isothiazol-3-amine diazo, and Methyl 3-(ethyl(phenyl)amino)propanoate?coupling.
Flammability and Explosibility
Notclassified
Standard(Vinegar fiber)
Ironing Fastness
Fading
Stain
Check Digit Verification of cas no
The CAS Registry Mumber 52239-04-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,2,3 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 52239-04:
(7*5)+(6*2)+(5*2)+(4*3)+(3*9)+(2*0)+(1*4)=100
100 % 10 = 0
So 52239-04-0 is a valid CAS Registry Number.
52239-04-0Relevant articles and documents
Structural and spectral characterizations of C.I. Disperse Blue 148 having a new crystalline form
Qian, Hui-Fen,Wang, Yin-Ge,Chen, Xiao-Chun,Ruan, Wei-Gang,Huang, Wei
, p. 489 - 495 (2013)
Single-crystal structures of the best high-temperature trichromatic blue azo dye C.I. Disperse Blue 148 and its diazonium component 3-amino-5-nitro-[2,1] - benzisothiazole are described herein. C.I. Disperse Blue 148 exhibits an essentially coplanar molecular structure and a dimeric packing mode between adjacent phenyl and benzisothiazole rings. Particularly, PXRD measurement reveals the existence of a new crystalline form of C.I. Disperse Blue 148 having the highest melting point and the best thermal stability, which is obviously different from all the known α, β, and γ forms. A one-phase recrystallization method, which can guarantee the complete transformation, is used to prepare the new crystalline form instead of the conventional heating of an aqueous suspension of α form. Furthermore, TGA-DSC and pH titration experiments have been carried out to reveal the thermal and pH stabilities of this heterocyclic dye. To our knowledge, this is the first structural example on benzisothiazole involved azo dyes.