L-Tryptophan CAS 73-22-3
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L-Tryptophan CAS 73-22-3

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Product Description

Believe Chemical is a leading China L-Tryptophan CAS 73-22-3 manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our L-Tryptophan CAS 73-22-3 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!

L-Tryptophan CAS 73-22-3 Chemical Specification 

Product Name




Molecular Weight 










White crystal or crystal powder



99% 99.36%


The result conform with standard

L-Tryptophan CAS 73-22-3 Chemical Properties

Melting point 289-290 ° C (Dec.) (lit.)
Specific rotation - 31.1 º (C = 1, H20)
Boiling point 342.72 ° C (rough estimate)
Density: 1.34
Refractive index - 32 ° (C = 1, H2O)
Storage condition: 2-8 ° C
Solubility 20% NH3: 0.1g/mlat20 ° C, clear, colorless
Form: Powder
Acidity coefficient (PKA) 2.46 (AT25 ℃)
Color: whitetoyellow white
PH 5.5-7.0 (10g / L, H2O, 20 ℃)
Optical activity[ α] 20/D31.5±1°,c=1%inH2O
Water solubility 11.4g/l (25 º C)

L-Tryptophan CAS 73-22-3 Application

Synthesis of organic intermediates

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