High Quality 3-Methyl-2-Buten CAS 556-82-1

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Products Description

Name: 3-Methyl-2-Buten

Cas: 556-82-1

Purity: 99%min


Basic Info:







Stock Availability

In stock

Brand Name

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Product Introduction:

3-Methyl-2-butenal, prenal, is a colorless flammable liquid with a chemical formula of C5H8O, which is irritating and irritating to mucous membranes.

It can be prepared from isoamyl alcohol.

It is a pharmaceutical intermediate and an organic substance used in the preparation of daily necessities and food flavors.

Product Nature:

  • Density: 0.872 g/mL at 25 °C(lit.)
  • Boiling point: 133-135 °C(lit.)
  • Melting point: -20°C
  • Flash point: 93 °F
  • Refractive index: n20/D 1.462(lit.)
  • Water solubility: soluble


Product Name3-Methyl-2-Buten
CAS No.556-82-1
Appearance Colorless transparent liquid
Content99% min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

Product function:

3-Methyl-2-butenal can be used as a raw material for fragrances. At the same time, isopentenal can also be used to produce citral, isophytoalcohol (the main intermediate of VE), as well as the synthesis of vitamin A, carotenoid intermediates, Rubber monomer, etc.

3-Methyl-2-Buten liquid is more irritating than isovaleraldehyde and is prone to auto-oxidation. It has anesthetic effect at high concentrations.

3-Methyl-2-Buten is irritating and irritates the mucous membranes.


  1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 3–374, 5–42, 8–102, 15–22, ISBN 0-8493-0594-2
  2. “sec-Isoamyl alcohol – Compound Summary”PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Retrieved 13 October 2011.
  3. Wikipedia


Pre-Sales Service

* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.

* The sample supports testing and inspection.

* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

*Any inquiries will be answered by our relevant personnel within 24 hours.

*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.


After-Sales Service

*We will monitor the logistics information in real time and will share the information with you.

* You can consult us at any time if you have any questions about the product, and we will answer you in time.

*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.


1. ≤50kg, we recommend express delivery, usually called DDU service;

2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;

3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;

4. For high-value products, please choose air and express to ensure the safety of the products.


Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

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