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Sell (R)-2-Amino-3-(3-indolyl)propionic acid

Inquiry
  Post Date: Oct 30,2013
  Expiry Date: Oct 30,2014
  Detailed Description: Cas No. :153-94-6 Quantity: 1Kilograms
Specs:White granular powder ,Assay >=99%
Payment Method: T/T , Paypal , Western Uion , L/C
FIRST:
CAS Number:153-94-6
Name:D(+)-Tryptophan
Molecular Structure of 153-94-6 (D(+)-Tryptophan)
Synonyms:(R)-2-Amino-3-(3-indolyl)propionic acid;
D-alpha-Amino-3-indolepropionic acid; 3,3'-Indolyl-2-alanine
Molecular Formula: C11H12N2O2
Molecular Weight:204.25
EINECS:205-819-9
Melting Point:282-285 C
Solubility:11 g/L (20 C) in water
Risk Codes:36/37/38
Appearance:White or yellow crystalline powder
Safety:Mildly toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx.

SECOND:
Item Specifications Results
Description White granular powder White granular powder
Assay >=99% 99.5%
Specific optical rotation a +30.5o - +32.5o +31.56o
Loss on drying <=0.20% 0.06%
Residue on ignition <=0.1% 0.05%
State of solution >=90% 91.2%
Arsenic(AS2O3) <=1 ppm <1 ppm
Chloride, (as Cl) <=0.020% <0.02%
Ammonjum NH4 <=0.020% <0.02%
Sulfate(SO4), (as SO4 ) <=0.020% <0.02%
Iron(as Fe) <=20ppm <20 ppm
Heavy metals,% (as Pb) <=10ppm <10 ppm
PH 5.4-6.4 6.3
L- Tryptophan <=0.5% 0.14%
Conclusion: The test result of the above mentioned product meets In-house standard

  CAS Registry Number:

153-94-6
  Synonyms: ;D-Tryptophan;(R)-2-Amino-3-(3-indolyl)propionic acid;H-D-Trp-OH;3-(2,3-dihydro-1H-indol-3-yl)-D-alanine;
  Molecular Formula: C11H12N2O2
  Molecular Weight: 204.23
  Molecular Structure: 153-94-6 D-(+)-Tryptophan
  Safety Description: S24/25:;

  Company: shanghai Xuxin Chemical Technology Co., Ltd     [ China ]        
  Contact: Camellia
  Tel: 8618868922857/86-021-60890630
  Fax: 86-02160890620
  Email: camellia_chemical@163.com
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