6371-23-9 Usage
Uses
Used in Textile Industry:
5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one is used as a dye in the textile industry for its bright pink to red-blue light properties. It provides excellent ironing fastness, light fastness, perspiration fastness, and washing fastness, making it suitable for various textile applications.
Used in Analytical Chemistry:
In analytical chemistry, 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one is used as a pH indicator. It exhibits a color change from yellow in acidic solutions to red in alkaline solutions, making it useful for determining the pH of various solutions.
Used in Research and Development:
Due to its unique chemical structure and properties, 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one is also used in research and development for the synthesis of new compounds and the study of their properties and potential applications.
Overall, 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one is a versatile compound with various applications in different industries, including the textile industry, analytical chemistry, and research and development. Its unique properties, such as its color-changing ability and fastness, make it a valuable asset in these fields.
Preparation
6-Bromo-4-methylbenzo[b]thiophen-3(2H)-one and 5,7-Dichloro-4-methyl-3-thianaphthenone?condensation.
Standard
Ironing Fastness
Fading
Stain
ISO
5
Check Digit Verification of cas no
The CAS Registry Mumber 6371-23-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,7 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6371-23:
(6*6)+(5*3)+(4*7)+(3*1)+(2*2)+(1*3)=89
89 % 10 = 9
So 6371-23-9 is a valid CAS Registry Number.
InChI:InChI=1/C18H9Cl3O2S2/c1-6-3-8(19)4-11-12(6)14(22)17(24-11)18-15(23)13-7(2)9(20)5-10(21)16(13)25-18/h3-5H,1-2H3/b18-17-
