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3142-72-1

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3142-72-1 Usage

Description

May be prepared by distillation of 2-hydroxy-2-methylvaleric acid (m-form).

Chemical Properties

Different sources of media describe the Chemical Properties of 3142-72-1 differently. You can refer to the following data:
1. white semi-transparent crystalline
2. With a dry acid note, 2-Methyl-2-pentenoic Acid is found in the odor of strawberries.The acid can be prepared from the corresponding saturated one by α-bromination followed by dehydrobromination. It is used in fragrances to enhance fruity notes and in strawberry flavors.

Uses

2-Methyl-2-pentenoic Acid (CAS# 3142-72-1) can be used for cleansing and refreshing hair and scalp. It can also be used to store and cure food products, and for providing a long-lasting strawberry odor.

Check Digit Verification of cas no

The CAS Registry Mumber 3142-72-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,4 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3142-72:
(6*3)+(5*1)+(4*4)+(3*2)+(2*7)+(1*2)=61
61 % 10 = 1
So 3142-72-1 is a valid CAS Registry Number.
InChI:InChI=1/C6H10O2/c1-3-4-5(2)6(7)8/h4H,3H2,1-2H3,(H,7,8)/p-1/b5-4+

3142-72-1 Well-known Company Product Price

  • Brand
  • (Code)Product description
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  • Alfa Aesar

  • (A16587)  2-Methyl-2-pentenoic acid, 99%   

  • 3142-72-1

  • 10g

  • 358.0CNY

  • Detail
  • Alfa Aesar

  • (A16587)  2-Methyl-2-pentenoic acid, 99%   

  • 3142-72-1

  • 50g

  • 1513.0CNY

  • Detail
  • Alfa Aesar

  • (A16587)  2-Methyl-2-pentenoic acid, 99%   

  • 3142-72-1

  • 250g

  • 3528.0CNY

  • Detail

3142-72-1SDS

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-Methyl-2-pentenoic acid

1.2 Other means of identification

Product number -
Other names 2-methyl-2-pentenoicaci

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:3142-72-1 SDS

3142-72-1Relevant articles and documents

Synthesis method of trans-2-methyl-2-pentenoic acid

-

Paragraph 0062-0067; 0073-0077, (2021/09/04)

The invention adopts a Reppe synthesis method to prepare 2-methyl-2-pentenoic acid. The method comprises the following steps: firstly, by taking m-pentadiene, carbon monoxide and water as raw materials, and taking precious metal rhodium salt and an organic phosphine ligand as catalysts, preparing a cis-trans isomeric intermediate of 2-methyl-3-pentenoic acid, and then carrying out isomerization reaction on the obtained intermediate product to generate trans-2-methyl-2-pentenoic acid, namely trans strawberry acid.

A 2-methyl-2-pentenoic acid synthesis method

-

, (2017/02/02)

The invention discloses a synthesis method of a 2-methyl-2-pentenoic acid. The method comprises the following steps: by taking n-propanal as a raw material, synthesizing 2-methyl-2-pentenal by aldehyde-aldehyde condensation; generating 2-methyl-2-pentene aldehyde oxime by the effects of the 2-methyl-2-pentenal and hydroxylamine; dewatering and synthesizing 2-methyl-2-allyl acetonitrile by using the 2-methyl-2-pentene aldehyde oxime under the effect of acetic anhydride; hydrolyzing the 2-methyl-2-allyl acetonitrile into the 2-methyl-2-pentenoic acid under the effect of a sulfuric acid. The reaction formula of the 2-methyl-2-pentenoic acid is shown in the specification. Compared with the prior art, the technology disclosed by the invention has main advantages that the synthesis method is available in synthetic materials, simple to operate, good in process stability, and good in fragrance of synthetic product.

Thermolysis of 4-Methyl-4-(1-propenyl)malonyl Peroxide: Mechanistic Limits to Chemiluminescence Efficiency

Porter, Judith E.,Schuster, Gary B.

, p. 4068 - 4071 (2007/10/02)

The preparation and thermal chemistry of 4-methyl-4-(1-propenyl)malonyl peroxide (3) is described.Thermolysis in acetonitrile at 84 deg C gives 2,4-dimethylbut-2-en-4-olide in 45percent yield and an oligomeric ester derived from an intermediate α-lactone in 55percent yield.The reaction of 3 can be catalyzed by aromatic hydrocarbons such as perylene.Under these conditions weak chemiluminescence results.The mechanism for light generation is identified as chemically initiated electron-exchange luminescence (CIEEL).Application of the CIEEL mechanism to 3 reveals an important limitation to light generation by this path.

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