Direct red 72 is a red dye that is soluble in water, resulting in a colorful red color. It is also soluble in ethanol, where it appears as a shallow orange-red color. The dye exhibits different shades when exposed to strong sulfuric acid or diluted, and when mixed with strong hydrochloric acid or sodium hydroxide solutions.
8005-64-9
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Basic information
- Product Name: Direct red 72
- Synonyms: Direct red 72
- CAS NO:8005-64-9
- Molecular Formula:
- Molecular Weight: 0
- 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 72(CAS DataBase Reference)
- NIST Chemistry Reference: Direct red 72(8005-64-9)
- EPA Substance Registry System: Direct red 72(8005-64-9)
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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: 8005-64-9(Hazardous Substances Data)
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8005-64-9 Usage
Uses
Used in Textile Industry:Direct red 72 is used as a dye for coloring textiles. Its acid and alkali resistance, light fastness, and water and soaping fading properties make it suitable for use in various textile applications.
Used in Leather Industry:
Direct red 72 is used as a dye for coloring leather products. Its acid and alkali resistance, as well as light fastness, make it suitable for use in leather applications.
Used in Paper Industry:
Direct red 72 is used as a dye for coloring paper products. Its light fastness and water and soaping fading properties make it suitable for use in paper applications.
Preparation
6-Aminonaphthalene-2-sulfonic acid diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, O-Anisidine (0. 6 Moore) and O-Methylaniline (0.4 Moore) diazo, and coupled product matches.Standard
Acid ResistanceFading
StainISO
4Check Digit Verification of cas no
The CAS Registry Mumber 8005-64-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.Calculate Digit Verification of CAS Registry Number 8005-64:
(6*8)+(5*0)+(4*0)+(3*5)+(2*6)+(1*4)=79
79 % 10 = 9
So 8005-64-9 is a valid CAS Registry Number.
8005-64-9Upstream product
8005-64-9Downstream Products
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Direct red 72
