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CAS

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101-52-0

4-[(4-nitrophenyl)azo]-o-anisidine, also known as Sudan I, is a synthetic organic compound with the chemical formula C13H12N4O3. It belongs to the azo dyes category and is recognized for its bright red-orange color. This chemical is primarily used in various industrial applications, such as coloring textiles and plastics.

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  • 101-52-0 Structure

  • Basic information

    1. Product Name: 2-methoxy-4-[(4-nitrophenyl)diazenyl]aniline
    2. Synonyms: 4-[(4-nitrophenyl)azo]-o-anisidine;2-Methoxy-4-[(4-nitrophenyl)azo]benzenamine;4-(4-Nitrophenylazo)-2-methoxyaniline;4-Amino-3-methoxy-4'-nitroazobenzene
    3. CAS NO:101-52-0
    4. Molecular Formula: C13H12N4O3
    5. Molecular Weight: 272.25938
    6. EINECS: 202-949-8
    7. Product Categories: N/A
    8. Mol File: 101-52-0.mol

  • Chemical Properties

    1. Melting Point: 243 °C
    2. Boiling Point: 492.4°C at 760 mmHg
    3. Flash Point: 251.6°C
    4. Appearance: /
    5. Density: 1.34g/cm3
    6. Vapor Pressure: 7.69E-10mmHg at 25°C
    7. Refractive Index: 1.633
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. PKA: 2.73±0.10(Predicted)
    11. CAS DataBase Reference: 2-methoxy-4-[(4-nitrophenyl)diazenyl]aniline(CAS DataBase Reference)
    12. NIST Chemistry Reference: 2-methoxy-4-[(4-nitrophenyl)diazenyl]aniline(101-52-0)
    13. EPA Substance Registry System: 2-methoxy-4-[(4-nitrophenyl)diazenyl]aniline(101-52-0)

  • 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: 101-52-0(Hazardous Substances Data)

101-52-0 Usage

Uses

Used in Textile Industry:
4-[(4-nitrophenyl)azo]-o-anisidine is used as a dye for coloring textiles, providing them with a vibrant red-orange hue. Its colorfastness and ability to adhere to fabric fibers make it a popular choice in this industry.
Used in Plastics Industry:
4-[(4-nitrophenyl)azo]-o-anisidine is used as a colorant in the plastics industry, where it imparts a bright red-orange color to plastic products. Its compatibility with various types of plastics and resistance to fading under different conditions contribute to its widespread use in this sector.
However, it's crucial to note that Sudan I, like many azo dyes, has faced regulatory restrictions due to potential health hazards. It has been associated with carcinogenicity and is banned or heavily regulated in several countries as a food additive due to its potential adverse effects on human health.

Check Digit Verification of cas no

The CAS Registry Mumber 101-52-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,0 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 101-52:
(5*1)+(4*0)+(3*1)+(2*5)+(1*2)=20
20 % 10 = 0
So 101-52-0 is a valid CAS Registry Number.
InChI:InChI=1/C13H12N4O3/c1-20-13-8-10(4-7-12(13)14)16-15-9-2-5-11(6-3-9)17(18)19/h2-8H,14H2,1H3/b16-15+

101-52-0Upstream product

101-52-0Downstream Products

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