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(4-Amino-phenyl)-acetaldehyde, also known as p-aminobenzaldehyde, is an aromatic aldehyde with the molecular formula C8H9NO. It features a phenyl group and an amino group attached to the carbon chain, which endows it with unique chemical properties and reactivity. (4-AMINO-PHENYL)-ACETALDEHYDE is a versatile building block in organic synthesis, playing a critical role in the production of various pharmaceuticals, dyes, and other fine chemicals.

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  • 204838-36-8 Structure
  • Basic information

    1. Product Name: (4-AMINO-PHENYL)-ACETALDEHYDE
    2. Synonyms: (4-AMINO-PHENYL)-ACETALDEHYDE
    3. CAS NO:204838-36-8
    4. Molecular Formula: C8H9NO
    5. Molecular Weight: 135.16
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 204838-36-8.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 281.0±15.0 °C(Predicted)
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: 1.109±0.06 g/cm3(Predicted)
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. PKA: 4.67±0.10(Predicted)
    10. CAS DataBase Reference: (4-AMINO-PHENYL)-ACETALDEHYDE(CAS DataBase Reference)
    11. NIST Chemistry Reference: (4-AMINO-PHENYL)-ACETALDEHYDE(204838-36-8)
    12. EPA Substance Registry System: (4-AMINO-PHENYL)-ACETALDEHYDE(204838-36-8)
  • 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: 204838-36-8(Hazardous Substances Data)

204838-36-8 Usage

Uses

Used in Pharmaceutical Industry:
(4-Amino-phenyl)-acetaldehyde is used as a key intermediate in the synthesis of pharmaceuticals for its ability to form a wide range of biologically active compounds. Its presence in the molecular structure can influence the pharmacological properties of the final drug products, making it an essential component in drug discovery and development.
Used in Dye Industry:
In the dye industry, (4-Amino-phenyl)-acetaldehyde is used as a precursor for the production of various dyes. Its aromatic and amino groups contribute to the color and stability of the dyes, making it a valuable component in the creation of a diverse palette of colorants for textiles, plastics, and other applications.
Used in Organic Synthesis:
(4-Amino-phenyl)-acetaldehyde is used as a building block in organic synthesis for the preparation of heterocyclic compounds. Its reactivity allows for the formation of complex molecular structures, which are important in the development of new chemical entities with potential applications in various fields.
Used in Materials Science and Polymer Chemistry:
Due to its unique chemical structure, (4-Amino-phenyl)-acetaldehyde has potential applications in materials science and polymer chemistry. It can be incorporated into polymers to modify their properties, such as solubility, stability, and reactivity, leading to the development of new materials with specific characteristics for various applications.
Used in Reagent Formulation:
(4-Amino-phenyl)-acetaldehyde can also be used as a reagent in the formation of imidazoles, which are important compounds in various chemical reactions and processes. Its role in the synthesis of imidazoles contributes to the development of new chemical methodologies and the production of valuable chemical products.

Check Digit Verification of cas no

The CAS Registry Mumber 204838-36-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,8,3 and 8 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 204838-36:
(8*2)+(7*0)+(6*4)+(5*8)+(4*3)+(3*8)+(2*3)+(1*6)=128
128 % 10 = 8
So 204838-36-8 is a valid CAS Registry Number.

204838-36-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(4-aminophenyl)acetaldehyde

1.2 Other means of identification

Product number -
Other names 2-(4-aminophenyl)ethanal

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:204838-36-8 SDS

204838-36-8Relevant articles and documents

Solvent-free aerobic selective oxidation of benzyl alcohol over La-Co bimetallic catalyst: A kinetic study

He, Zhen-Hong,Jiang, Xulu,Liu, Zhao-Tie,Wang, Kuan,Wang, Ruoxin,Wang, Weitao,Yang, Yang

, (2022/02/25)

It is desirable but challenging to explore non-noble metal based catalyst for the solvent-free aerobic oxidation of benzyl alcohol to benzaldehyde. LayCo1Ox was prepared through a co-precipitation method, which exhibited excellent catalytic performance for titled reaction with a yield of 73.1% and selectivity of 99.6%. Introduction of La in the Co3O4 can modify the electronic property of Co, improving the surface Co3+ content and enhancing the activity. The synergistic effects of La and Co in the bimetallic catalysts are kinetically discussed. In addition, the kinetic and experimental studies revealed that the generated water favors the selectivity but suppresses the activity for the titled reaction. It is found that good activity and excellent selectivity for the (heterocyclic)aromatic alcohols aerobic selective oxidation over the bimetallic catalyst were obtained.

One step hair coloring compositions using salts

-

, (2008/06/13)

A hair coloring composition comprising the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an amino phenol, a naphthol, a polyhydric phenol, a catechol and mixtures thereof; wherein the composition comprising one or more oxidative hair coloring agents further comprises al least one water soluble carbonate releasing salts; and optionally a water soluble ammonium salt, is described.

Transition metal complexes as dye forming catalysts in hair coloring compositions

-

, (2008/06/13)

A hair coloring composition comprising a first composition which comprises: (a) a dye forming transition metal salt or complex; which is first applied to the hair; and a second composition which comprises the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an aminophenol, a polyhydric phenol a catechol and mixtures thereof.

Hair colouring and conditioning compositions

-

, (2008/06/13)

A hair colouring and conditioning composition comprising: (a) a hair colouring agent; and (b) a hair conditioning agent; wherein the composition provides an Average Combing Index Value of greater than 1.2 as measured by the Combing Technical Test Method. The products can provide excellent hair colouring together with excellent conditioning, reduced hair damage, brittleness and dryness, and is convenient and easy to use.

Hair conditioning compositions and their use in hair colouring compositions

-

, (2008/06/13)

The present invention relates to a hair care composition comprising a aminofunctional polysiloxane having a specified average effective particle size which provides improved durable conditioning particularly when utilised in conjunction with a hair colouring composition.

HAIR COLORING COMPOSITIONS

-

, (2008/06/13)

A hair coloring composition comprising: (a) from about 0.0003 moles (per 100 g of composition) to less than about 0.09 moles (per 100 g of composition) of an inorganic peroxygen oxidizing agent; and (b) an oxidative hair coloring agent; wherein the pH of each of (a) and (b) is in the range of from about 1 to about 6 and wherein the combined mixture of (a) and (b) has a pH in the range of from about 1 to about 6. The products can provide excellent hair coloring and in-use efficacy benefits including excellent initial color and good wash fastness in combination with reduced hair damage at low pH.

HAIR COLORING COMPOSITIONS

-

, (2008/06/13)

A hair coloring composition comprising: (a) a preformed organic peroxyacid oxidising agent; and (b) an oxidative hair coloring agent; wherein the pH of each of components (a) and (b) is in the range of from about pH 1 to less than about pH 7 and wherein the pH of the composition is in the range of from about pH 1 to less than about pH 7. The products can provide excellent hair coloring and in-use efficacy benefits including excellent initial color and good wash fastness in combination with reduced hair damage at low pH.

Enzyme-activated oxidative process for coloring hair

-

, (2008/06/13)

An enzyme-based oxidative process for coloring hair wherein the hair is exposed to a solution having a pH of about 4 to about 10 and containing hydrogen peroxide, soybean peroxidase enzyme and one or more oxidation dye precursors.

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