Indole-3-acetic acid CAS 87-51-4
  • Indole-3-acetic acid CAS 87-51-4Indole-3-acetic acid CAS 87-51-4

Indole-3-acetic acid CAS 87-51-4

Indole-3-acetic acid CAS 87-51-4 White crystalline powder. Melting point 165-166°C (168-170°C). Soluble in acetone and ether, slightly soluble in chloroform, insoluble in water.

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Product Description

Believe Chemical is a leading China Indole-3-acetic acid CAS 87-51-4 manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our Indole-3-acetic acid CAS 87-51-4 have been satisfied by many customers. Shandong Believe Chemical Pte. Ltd. is a high-tech enterprise integrating R &D and sales of chemical technology. 

We are good at the advantages of chemical products in the field. Our products are exported to Europe, the United States, Japan, South Korea, Southeast Asia and other countries and regions. With science and technology as the guide, honesty as the foundation, quality as the life, and relying on the enterprise concept of innovation and development, we sincerely hope to establish exchanges and extensive cooperation with domestic and foreign customers to create prosperity!

Indole-3-acetic acid CAS 87-51-4 Chemical Specification 

Product Name

Indole-3-acetic acid



Molecular Weight 










off-white to tan crystalline



99% 99.28%


The result conform with standard

Indole-3-acetic acid CAS 87-51-4 Chemical Properties

Melting point 165-169°C(lit.)
Boiling point 306.47°C (roughestimate)
Density 1.1999 (roughestimate)
Refractive index 1.5460 (estimate)
Flash point 171°C
Storage condition -20°C
morphological crystalline
Acidity coefficient (pKa) 4.75(at25℃)
Color off-whitetotan

Indole-3-acetic acid CAS 87-51-4 Application

Used as plant growth stimulating hormone and analytical reagent. 3-Indoleacetic acid and auxins such as 3-indoleacetaldehyde, 3-indoleacetonitrile and ascorbic acid exist naturally in nature. The precursor of 3-indoleacetic acid biosynthesis in plants is tryptophan. The basic function of auxin is to regulate the growth of plants, not only to promote growth, but also to inhibit growth and organ building. βChemicalbook auxin not only exists in free state in plant cells, but also exists in bound auxin that is firmly bound to biopolymers, and also has auxin that forms conjugates with special substances, such as indoleacetyl aspart. amide, indole acetate apentose and indole acetyl glucose, etc. This may be a storage method of auxin in cells, and it is also a detoxification method to relieve the toxicity of excess auxin.

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