Basic Red 4 is a synthetic dye that exhibits bright blue light and a pink hue. It is soluble in water, where it appears cherry red with brown fluorescence, and in ethanol, where it presents a big red color with green fluorescence. When it comes into contact with strong sulfuric acid, it turns yellow, but upon dilution, it reverts to red. The dye solution, when mixed with a strong sodium hydroxide solution, results in a big red precipitate.
70185-38-5
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Basic information
- Product Name: Basic Red 4
- Synonyms: Basic Red 4
- CAS NO:70185-38-5
- Molecular Formula: C27H29 N2 O3 . Cl
- Molecular Weight: 464.99
- 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: Basic Red 4(CAS DataBase Reference)
- NIST Chemistry Reference: Basic Red 4(70185-38-5)
- EPA Substance Registry System: Basic Red 4(70185-38-5)
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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: 70185-38-5(Hazardous Substances Data)
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70185-38-5 Usage
Uses
Used in Textile Industry:Basic Red 4 is used as a coloring agent for cotton due to its light fastness, perspiration fastness, ironing fastness, and soaping properties. It is effective in providing a vibrant red color to cotton fabrics while maintaining the color's stability under various conditions.
Used in Color Stabilization:
Basic Red 4 is utilized in the stabilization of colors, particularly in the textile industry, to prevent fading and staining. Its ability to maintain color intensity under different conditions, such as light exposure and washing, makes it a valuable addition to the dyeing process.
Preparation
3-(Diethylamino)phenol (1 Moore) and Phthalic anhydride?(1 Moore) condensation, the products with 3-Amino-4-methylphenol by condensation, then b esterification.Standard( Cotton )
Light FastnessFading
StainC
1Check Digit Verification of cas no
The CAS Registry Mumber 70185-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,1,8 and 5 respectively; the second part has 2 digits, 3 and 8 respectively.Calculate Digit Verification of CAS Registry Number 70185-38:
(7*7)+(6*0)+(5*1)+(4*8)+(3*5)+(2*3)+(1*8)=115
115 % 10 = 5
So 70185-38-5 is a valid CAS Registry Number.
70185-38-5Upstream product
70185-38-5Downstream Products
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Basic Red 4
