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L-Tryptophan

Inquiry
  Post Date: Aug 14,2014
  Expiry Date: Feb 10,2015
  Detailed Description: Cas No. :73-22-3

Packaging & Delivery

Packaging Details: 25kg cardboard drum *or as client's requirement
Delivery Detail: 15 days after the payment.

Specifications

L-Tryptophan
1 Characteristics: white crystalline powder
2 assay:98.5%
3 standard: usp24 AJI92
4 usage: food additive

Basic Information:

Product Name:

L-Tryptophan

Synonyms:

H-Trp-OH; L-Tryptophane; 

L-Tryptohan; TRP; 

(S)-2-Amino-3-(3-indolyl)propionic acid; 

2-Amino-3-(1H-indol-3-yl)propanoic acid; Tryptophan

CAS RN.:

73-22-3

EINECS:

200-795-6

Molecular Weight:

204.2252

Molecular Formula:

C11H12N2O2

Density:

1.362g/cm3

Melting Point(°C):

280-285°C

Boiling Point(°C):

447.9°C at 760 mmHg

Flash Point(°C):

224.7°C

refractive_index:

1.697

Water Solubility:

11.4 g/L (25°C)

 

 

 

Specifications:

Test Items

PECIFICATION                              

Description

White or yellow slightly crystalline powder

Specific Rotation

–30.50 to –32.5degree  

PH:

5.5~6.4                                       

Chloride (Cl):

0.05% Max                                    

Sulfate:

NMT0.03%                    

Heavy Metals:

NMT 0.0015%                               

Arsenic:

NMT1ppm              

Iron:

NMT 0.003%                              

Loss on drying:

NMT 0.3%                     

Residue on Ignition:

NMT 0.1%                       

Assay:

99.0-101.0%     

 

 

 

 

Application:

Like other amino acids, L-Tryptophan is one of the building blocks of protein,but unlike some amino acids, L-Tryptophan is considered essential because the body cannot manufacture its own. L-Tryptophan plays many roles in animals and humans alike, but perhaps most importantly, it is an essential precursor to a number of neurotransmitters in the brain. As such, L-Tryptophan is the only substance normally found in the diet that can be converted into serotonin. Since serotonin,in turn is converted in the brain into melatonin, L-Tryptophan clearly plays a role in balancing mood and sleep patterns.

  CAS Registry Number:

73-22-3
  Synonyms: ;H-Trp-OH;L-Tryptophane;L-Tryptohan;TRP;(S)-2-Amino-3-(3-indolyl)propionic acid;2-Amino-3-(1H-indol-3-yl)propanoic acid;Tryptophan;(S)-2-Amino-3-(1H-indol-3-yl)propanoic acid;L-alphs-Amino-3-indolepropionic acid; Indole-3-alanine;
  Molecular Formula: C11H12N2O2
  Molecular Weight: 204.2252
  Molecular Structure: 73-22-3 L-Tryptophan
  Risk Codes: R33:有累积作用的危险‖R40;
  Safety Description: S24/25:;

  Company: Anyang Criss chemicals Co,.ltd.     [ China ]        
  Contact: Mr zhang
  Tel: 86-372-5055727
  Fax: 86-372-5055727
  Email: crisschem@hotmail.com
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