6219-99-4 Usage
Uses
Used in Textile Industry:
Vat Red 38 is used as a dye for coloring fabrics. It is known for its excellent ironing fastness, chlorine bleach fastness, light fastness, and oxygen bleach fastness. It also has good soaping and fading properties, making it a popular choice for textile manufacturers.
Used in Mercerized Fabrics:
Vat Red 38 is particularly useful for coloring mercerized fabrics, which are treated with a sodium hydroxide solution to increase their luster and strength. The dye provides a vibrant and long-lasting color to these fabrics.
Used in Standard Dye Testing:
Vat Red 38 is also used in standard dye testing to evaluate the performance of various dyes and their fastness properties. It serves as a benchmark for comparing the colorfastness of other dyes in the industry.
Preparation
2,4-Dichloro-6-aminodiphenyl ether and Methyl 1-chloro-9,10-dioxo-9,10-dihydroanthracene-2-carboxylate?condensation, hydrolysis, and then use Benzoyl chloride in 1,2-dichlorobenzene cyclization.
Standard
Ironing Fastness
Fading
Stain
ISO
5
Check Digit Verification of cas no
The CAS Registry Mumber 6219-99-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,1 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6219-99:
(6*6)+(5*2)+(4*1)+(3*9)+(2*9)+(1*9)=104
104 % 10 = 4
So 6219-99-4 is a valid CAS Registry Number.
InChI:InChI=1/C27H13Cl2NO4/c28-18-12-19(29)27(34-13-6-2-1-3-7-13)23-21(18)26(33)17-11-10-16-20(22(17)30-23)25(32)15-9-5-4-8-14(15)24(16)31/h1-12H,(H,30,33)
