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Postion:Product Catalog >Biochemical Engineering>Amino Acids and proteins>D(+)-Tryptophan
D(+)-Tryptophan
  • D(+)-Tryptophan
  • D(+)-Tryptophan
  • D(+)-Tryptophan
  • D(+)-Tryptophan
  • D(+)-Tryptophan

D(+)-Tryptophan NEW

Price $20 $15 $6
Package 1kg 25kg 100kg
Min. Order: 1kg
Supply Ability: 20 tons
Update Time: 2025-06-20

Product Details

Product Name: D(+)-Tryptophan CAS No.: 153-94-6
EC-No.: 205-819-9 Min. Order: 1kg
Purity: 0.99 Supply Ability: 20 tons
Release date: 2025/06/20

An essential amino acid found in naturally produced peptides. Unlike its stereoisomer, L-tryptophan, it is not used in structural or enzyme proteins.

Name

D(+)-Tryptophan

EINECS205-819-9
CAS No.153-94-6Density1.362 g/cm3
PSA79.11000LogP1.82260
Solubility11 g/L (20 °C) in waterMelting Point282-285 °C
FormulaC11H12N2O2Boiling Point447.9 °C at 760 mmHg
Molecular Weight204.228Flash Point224.7 °C
Transport InformationN/AAppearanceWhite or yellow crystalline powder

Appearance and properties: white or yellow crystalline powder

Density: 1.362 g/cm3

Boiling point: 447.9oC at 760 mmHg

Melting point: 282-285oC

Stability: Stable. Incompatible with oxidizing agents.

Storage: Store at RT.

Vapor pressure: 4.27E-07mmHg at 25°C


Production method

Dl-tryptophan was used as raw material to add chloroacetic anhydride in the cooling state, then ground in ice water aftersulfuric acid acidification, recrystallized in water after filtration, and finally treated with pancreatic carboxypeptidase toremove L-type, acetic acid acidification, ethanol recrystallization and refining.


Use

It is an important nutrient and is used in medicine as a prevention and treatment agent for scabies. It can used in biochemistry research. And it is an important nutrient which is used as controlling agent of bark favus in medication.

Article illustration

Article illustration

Article illustration


Company Profile Introduction

Hebei Yanxi Chemical Co. LTD., mainly produce the Carbomer940/980/u21 and lead acetate and lead oxide, lead stearate, lead salt, at the same time operating organic intermediates, surfactants, Food additive,inorganic salt, plant extracts, cosmetics raw material, etc., through long-term development, hebei said bush chemical co., LTD. In hebei province has become a collection of r &d, production, sales in the integration of high-tech enterprises.

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