Direct Red 69 is a red dye that is soluble in water, producing a cherry red color. It is not soluble in alcohol and exhibits acid and alkali resistance properties. When exposed to strong sulfuric acid, it turns purple and forms a purple precipitate upon dilution. The dye solution turns purple when strong hydrochloric acid is added and forms a purple precipitate. However, adding a thick sodium hydroxide solution does not cause any change.
5915-58-2
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Basic information
- Product Name: Direct Red 69
- Synonyms: Direct Red 69
- CAS NO:5915-58-2
- Molecular Formula: C31H21N4NaO7S4
- Molecular Weight: 712.76
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: Direct Red 69(CAS DataBase Reference)
- NIST Chemistry Reference: Direct Red 69(5915-58-2)
- EPA Substance Registry System: Direct Red 69(5915-58-2)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 5915-58-2(Hazardous Substances Data)
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5915-58-2 Usage
Uses
Used in Textile Industry:Direct Red 69 is used as a dye for coloring textiles. Its acid and alkali resistance properties make it suitable for various dyeing processes, ensuring colorfastness and durability.
Used in Leather Industry:
Direct Red 69 is used as a dye for coloring leather products. Its light fastness and soaping properties make it suitable for leather dyeing, providing long-lasting color and resistance to fading.
Used in Paper Industry:
Direct Red 69 is used as a dye for coloring paper products. Its water resistance and stain properties make it suitable for paper dyeing, ensuring colorfastness and preventing color transfer.
Used in Cosmetic Industry:
Direct Red 69 is used as a colorant in cosmetic products, such as lipsticks and blushes. Its acid and alkali resistance properties make it suitable for cosmetic formulations, ensuring color stability and longevity.
Preparation
p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ℃ heat, with hair smoke from the sulphonated sulfuric acid alkali primrose spirit. The product C.I. Direct Yellow 59 (C.I. 49000) diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.Standard
Acid ResistanceFading
StainISO
4Check Digit Verification of cas no
The CAS Registry Mumber 5915-58-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,9,1 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.Calculate Digit Verification of CAS Registry Number 5915-58:
(6*5)+(5*9)+(4*1)+(3*5)+(2*5)+(1*8)=112
112 % 10 = 2
So 5915-58-2 is a valid CAS Registry Number.
InChI:InChI=1/C31H20N4O7S4.2Na/c1-16-6-12-23-28(29(16)46(40,41)42)44-31(33-23)18-9-13-22-25(14-18)43-30(32-22)17-7-10-19(11-8-17)34-35-24-15-26(45(37,38)39)20-4-2-3-5-21(20)27(24)36;;/h2-15,36H,1H3,(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2
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Direct Red 69
