75497-74-4 Usage
Preparation
2,4-Dinitro-6-bromoaniline?diazo, and Acetamide,N-[3-[bis[2-(acetyloxy)ethyl]amino]-4-methoxyphenyl]- coupling.
Properties and Applications
navy. Blue gray powder, soluble in acetone. Dye bath of iron ion in light of basically no influence on, encounter copper ions influence is bigger, the alkali sensitive, dye bath pH for 5 ~ 6. The dye is suitable for high temperature and high pressure dyeing, dyeing deep color, sublimation fastness is better, the high temperature can finalize the design, when the piece dyed levelness slightly less. In the three vinegar fiber dyeing, slant red light, not suitable for two vinegar fiber dyeing. Acrylic and polyester fiber, with the dye printing, color is not enough gaudy. And with plasma reactive dye printing, colored light can change.
Check Digit Verification of cas no
The CAS Registry Mumber 75497-74-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,9 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 75497-74:
(7*7)+(6*5)+(5*4)+(4*9)+(3*7)+(2*7)+(1*4)=174
174 % 10 = 4
So 75497-74-4 is a valid CAS Registry Number.
75497-74-4Relevant articles and documents
Synthesis and Spectral Characterization of Blue Dyes of the Benzene Series
Thiel, W.,Mayer, R.,Jauer, E.-A.,Modrow, H.,Dost, H.
, p. 497 - 514 (2007/10/02)
53 Donor-acceptor substituted azo dyes of the benzene series were prepared by diazonium-coupling reactions (1a-s) or halogen-cyanide exchange (->2a-x, 3a-j).Described are the preparation of the amines 4a-m and the coupling compounds 5a-t and the procedure of diazotizing and coupling.The colouristic and spectroscopic data show that compounds of the general formula 1 are excellent brilliant blue azo dyes usefull for dyeing polyester material.
