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65461-91-8

3,3'-Dihydroxydiphenylamine, also known as A-33, Santoflex A, or Flexzone A, is a chemical compound with the molecular formula C12H11NO2. It is a white to slightly yellow solid with a melting point of 290-295°C and a boiling point of 330°C. 3,3'-DIHYDROXYDIPHENYLAMINE is highly soluble in organic solvents such as acetone, ethanol, and benzene, but is insoluble in water. It is commonly used as an antioxidant and stabilizer in various industrial applications, including rubber and petroleum products, and serves as an intermediate in the production of dyes, pigments, and pharmaceuticals. 3,3'-Dihydroxydiphenylamine is considered to be a relatively safe chemical with low toxicity and minimal environmental impact.

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  • 65461-91-8 Structure

  • Basic information

    1. Product Name: 3,3'-DIHYDROXYDIPHENYLAMINE
    2. Synonyms: 3,3-DIHYDROXYDIPHENYLAMINE 97+%;Bis(3-hydroxyphenyl)amine 3,3'-Iminodiphenol;BIS(3-HYDROXYPHENYL)AMINE;3,3'-DIHYDROXYDIPHENYLAMINE;3,3'-IMINODIPHENOL;Dihydroxydiphenylamine;3,3'-iminobisphenol
    3. CAS NO:65461-91-8
    4. Molecular Formula: C12H11NO2
    5. Molecular Weight: 201.22
    6. EINECS: 265-787-7
    7. Product Categories: Diphenylamines (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research
    8. Mol File: 65461-91-8.mol

  • Chemical Properties

    1. Melting Point: 142°C
    2. Boiling Point: 383.7°C at 760 mmHg
    3. Flash Point: 173.4°C
    4. Appearance: /
    5. Density: 1.32g/cm3
    6. Vapor Pressure: 1.96E-06mmHg at 25°C
    7. Refractive Index: 1.707
    8. Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
    9. Solubility: N/A
    10. PKA: 9.56±0.10(Predicted)
    11. CAS DataBase Reference: 3,3'-DIHYDROXYDIPHENYLAMINE(CAS DataBase Reference)
    12. NIST Chemistry Reference: 3,3'-DIHYDROXYDIPHENYLAMINE(65461-91-8)
    13. EPA Substance Registry System: 3,3'-DIHYDROXYDIPHENYLAMINE(65461-91-8)

  • Safety Data

    1. Hazard Codes: Xn
    2. Statements: 22
    3. Safety Statements: 22-24/25
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 65461-91-8(Hazardous Substances Data)

65461-91-8 Usage

Uses

Used in Rubber and Petroleum Industry:
3,3'-Dihydroxydiphenylamine is used as an antioxidant and stabilizer for enhancing the durability and performance of rubber and petroleum products. It helps prevent the degradation of these materials under various conditions, thereby extending their service life and maintaining their quality.
Used in Dye and Pigment Production:
3,3'-Dihydroxydiphenylamine is used as an intermediate in the production of dyes and pigments. Its chemical properties make it suitable for the synthesis of various colorants used in different industries, including textiles, plastics, and printing inks.
Used in Pharmaceutical Industry:
3,3'-Dihydroxydiphenylamine is used as an intermediate in the synthesis of pharmaceuticals. Its unique chemical structure allows it to be incorporated into the development of new drugs and medications, contributing to advancements in healthcare and medicine.

Check Digit Verification of cas no

The CAS Registry Mumber 65461-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,4,6 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65461-91:
(7*6)+(6*5)+(5*4)+(4*6)+(3*1)+(2*9)+(1*1)=138
138 % 10 = 8
So 65461-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO2/c14-11-5-1-3-9(7-11)13-10-4-2-6-12(15)8-10/h1-8,13-15H

65461-91-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 3,3'-Iminodiphenol

1.2 Other means of identification

Product number -
Other names 3-(3-hydroxyanilino)phenol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:65461-91-8 SDS

65461-91-8Synthetic route

recorcinol
108-46-3

recorcinol

3,3'-dihydroxydiphenylamine
65461-91-8

3,3'-dihydroxydiphenylamine

Conditions
ConditionsYield
With ammonia; calcium chloride at 190 - 200℃;
ammonia
7664-41-7

ammonia

recorcinol
108-46-3

recorcinol

calcium chloride

calcium chloride

3,3'-dihydroxydiphenylamine
65461-91-8

3,3'-dihydroxydiphenylamine

Conditions
ConditionsYield
at 190 - 200℃;
3,3'-dihydroxydiphenylamine
65461-91-8

3,3'-dihydroxydiphenylamine

ethyl iodide
75-03-6

ethyl iodide

3,3'-diethoxydiphenylamine

3,3'-diethoxydiphenylamine

Conditions
ConditionsYield
With potassium hydroxide In ethanol22%
3,3'-dihydroxydiphenylamine
65461-91-8

3,3'-dihydroxydiphenylamine

3,3'-diethoxytriphenylamine

3,3'-diethoxytriphenylamine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 22 percent / 10percent potassium hydroxyde / ethanol
2: 2.8 percent / p-tolunesulfonic acid / toluene / 12 h / Heating
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