L-Tryptophan

• Product Name:L-Tryptophan
• Synonyms: Trytophan (W) Solution, 100ppm L-Tryptophan Vetec(TM) reagent grade, >=98% L-TRYPTOPHAN (13C11,D8,15N2) L-Tryptophan(pharm grade) L-Tryptophan, Animal-Free DL-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID DL-ALPHA-AMINO-3-INDOLEPROPIONIC ACID DL-B-3-INDOLYLALANINE
• CAS:73-22-3
• MF:C11H12N2O2
• MW:204.23
• EINECS:200-795-6
• Mol File:73-22-3.mol
• 

L-tryptophan, an essential aminoacid and precursor of serotonin, was introduced into medicine in 1963 for the treatment of depression and sleep disorders. Its effectiveness in these conditions has, however, never been convincingly demonstrated. It is also widely used in dietary supplements, parenteral nutrition preparations and dietary products for children with phenylketonuria. In 1989, reports from the USA showed an association between the consumption of L-tryptophan containing preparations and the development of eosiniphilia-myalgia syndrome (EMS), a condition characterized by intense eosinophilia, severe muscle and joint pain, swelling of the arms and legs, skin rashes and possible fever. Some of the reported cases have been fatal. Since it is not yet clear whether L-tryptophan itself or an unidentified contaminant is the cause of the EMS, many drug regulatory authorities have suspended the marketing authorization of products containing tryptophan pending further investigation, whereas others have withdrawn these products or restricted their use.

• L-Tryptophan
• 
• US $85.00-45.00/Kg/Bag
• CAS:73-22-3
• Min. Order: 1Kg/Bag
• Purity: 99% up, High Density
• Supply Ability: 20 tons
• 2024-04-28

• L Tryptophan
• 
• US $0.00 /kg
• CAS:73-22-3
• Min. Order: 1kg
• Purity: 99%
• Supply Ability: 1000kg
• 2024-04-25

• Company Name:Shanghai Aladdin Bio-Chem Technology Co.,LTD
• Tel:18521735133 18521732826;
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99% Package:25g/RMB 30.90;500g/RMB 311.90;100g/RMB 78.90 More...
• CB Index:65
• Related Information:Catalog(25015)

• Company Name:Wuxi Bikang Bioengineering Co., Ltd
• Tel:0510-80245888 400-0510-518
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99 Package:25KG
• CB Index:58
• Related Information:Catalog(46)

• Company Name:HENGSHUI HAOYE CHEMICAL CO.,LTD.
• Tel:0318-2102300 18632882519
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99% Package:25kg/ More...
• CB Index:58
• Related Information:Catalog(80)

• Company Name:Shaanxi Chenming Biotechnology Co., Ltd
• Tel: 15332367321
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99.9% Package:500000kg Remarks:450000kg
• CB Index:58
• Related Information:Catalog(1068)

• Company Name:Jiangsu Duoyang Bioengineering Technology Co., Ltd
• Tel: 15161148838
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99% Package:≥1公斤/RMB 90;≥25公斤/RMB 85;≥1000公斤/RMB 80
• CB Index:58
• Related Information:Catalog(922)

• Company Name:Wuhan Qixinhui Technology Co., Ltd
• Tel:027-87002654 18062710658
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:99% Package:25kg;100kg;200kg
• CB Index:58
• Related Information:Catalog(934)

• Company Name:Xiamen Yunfan Biotech Co., Ltd.
• Tel:0592-7828678 18050056030
• Products Intro:Product Name:L-Tryptophan
  CAS:73-22-3
  Purity:98% Package:1kg
• CB Index:58
• Related Information:Catalog(66)

• Company Name:J & K SCIENTIFIC LTD.
• Tel:010-82848833 400-666-7788
• Products Intro:Product Name:L-Tryptophan, 99%
  CAS:73-22-3
  Purity:99% Package:100G;25G;500G More...
• CB Index:76
• Related Information:Catalog(96815)