Factory Supply High Quality L-Tryptophan CAS 73-22-3

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Product Overview


Factory Supply High Quality L-Tryptophan CAS 73-22-3

It is white crystalline powder. Odorless, slightly bitter, slightly soluble in water (1.14%, 25℃), insoluble in ethanol. Soluble in dilute acid or alkali. mp289℃(decomposition). Coloration by prolonged light exposure. A small amount of indole is produced by co-heating with water, and a large amount of indole is produced by heating in the presence of sodium hydroxide and copper sulfate. It is more stable when heated with acid in the dark, but it is highly decomposed when heated with other amino acids, sugars and aldehydes. When protein is decomposed with acid, tryptophan is completely decomposed.

Product Name
Melting Point
289-290 °C (dec.)(lit.)
Boiling Point
White to yellow crystal or crystal powder
Storage Conditions


1. Amino acid drugs. Used in amino acid infusions. Often used in combination with iron and vitamins; used in combination with VB6 to improve depression and prevent rough skin disease; used as an insomnia sedative with L-dopa in the treatment of Parkinson's disease.
2. Nutritional supplements. It can be combined with lysine, methionine and threonine to fortify amino acids. Important component of amino acid infusion and comprehensive amino acid preparation. It can treat niacin deficiency.
3. Used in biochemical research and as a sedative in medicine. Use to improve nutrition and enhance physical fitness.

Different weight products have different price, please consult us,and we will do our best to serve you,have a good day!

1. With a seasoned R&D team, we are experienced in producing multiple chemicals over the past ten years.
2. Tailor-made packing can also be available according to your specific requirment.
3. Fast response. Every inquiry will be answered within 24 hours
4. Prompt delivery. We have worked with many forwarding companies for years.
5. Good quality, we have a strict quality control system.

Q: When will my goods be shipped?
A:About 3-5 days after prepayment is paid.

Q: Can I get a sample?
A: Free samples are available, but buyers needs to pay freight.

Q: How long does it take for me to get a sample?
A: It depends. Generally speaking, it is about 7-10 days.

Q: why is the quote offered different from the sticker price?
A: As we know, prices of chemicals are not fixed, they fluctuate with the markets.

Q: Is the quality of your products guaranteed?
A: We have a professional R&D team, so every batch of our products is up to standard.

0.0153 s.