2-(Phenylazo)-1-naphthalenol acetate, commonly known as Sudan IV, is a synthetic azo dye primarily utilized for coloring waxes, oils, and plastics. It is characterized by its reddish-brown crystalline form, which is insoluble in water but readily soluble in most organic solvents. Sudan IV is recognized for its ability to stain lipids, triglycerides, and lipoproteins in biological samples, making it a valuable tool in the fields of histology and cytology.

62637-98-3

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Basic information
1. Product Name: 2-(Phenylazo)-1-naphthalenol acetate
2. Synonyms: 2-(Phenylazo)-1-naphthalenol acetate
3. CAS NO:62637-98-3
4. Molecular Formula: C₁₈H₁₄N₂O₂
5. Molecular Weight: 290.32
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 62637-98-3.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 470.4°C at 760 mmHg
3. Flash Point: 211°C
4. Appearance: /
5. Density: 1.16g/cm³
6. Vapor Pressure: 5.1E-09mmHg at 25°C
7. Refractive Index: 1.606
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: 2-(Phenylazo)-1-naphthalenol acetate(CAS DataBase Reference)
11. NIST Chemistry Reference: 2-(Phenylazo)-1-naphthalenol acetate(62637-98-3)
12. EPA Substance Registry System: 2-(Phenylazo)-1-naphthalenol acetate(62637-98-3)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 62637-98-3(Hazardous Substances Data)

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62637-98-3 Usage

Uses

Used in Histology and Cytology:
2-(Phenylazo)-1-naphthalenol acetate is used as a staining agent for lipids, triglycerides, and lipoproteins in biological samples. Its lipophilic nature allows for the clear visualization of these substances under microscopic examination, aiding in the diagnosis and study of various conditions and cellular structures.
Used in Coloring Applications:
In the industry of waxes, oils, and plastics, 2-(Phenylazo)-1-naphthalenol acetate is used as a coloring agent to impart a specific hue to these materials. Its solubility in organic solvents makes it suitable for use in these applications, enhancing the aesthetic appeal and functionality of the final products.
However, it is important to note that due to its classification as a carcinogen and mutagen, the use of Sudan IV is regulated in many countries to mitigate potential health risks. Therefore, strict safety measures and precautions should be observed when handling and utilizing this chemical in any application.

Check Digit Verification of cas no

The CAS Registry Mumber 62637-98-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,6,3 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 62637-98:
(7*6)+(6*2)+(5*6)+(4*3)+(3*7)+(2*9)+(1*8)=143
143 % 10 = 3
So 62637-98-3 is a valid CAS Registry Number.

InChI:InChI=1/C18H14N2O2/c1-13(21)22-18-16-10-6-5-7-14(16)11-12-17(18)20-19-15-8-3-2-4-9-15/h2-12H,1H3/b20-19+

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