Essential Oil, Balsam & Fine Chemicals
L-Tryptophan
Description
ynonyms： D-Tryptophan; (R)-2-Amino-3-(3-indolyl)propionic acid-H-D-Trp-OH
Molecular Formula: C11H12N2O2
CAS Number: 73-22-3
Molecular Weight: 204.2
Appearance: White fine crystals Assay 99%(min)
PH: 5.5-7.0
Chloride(Cl) :0.020%max
Sulfate(SO4) :0.020% max
Ammonium(NH4) :0.020% max
Iron (Fe) :10ppm MAX
Heavy metals(pb) :10ppm max
Arsenic(AS2O3) :1ppm MAX
Other amino acids :0.020%
Loss on drying :0.2%
Residue on ignition :0.1%
State of solution :98.0%
Specific Rotation: -29.4- -32.8°C=1 in H2O)
Read More
Hangzhou Peak ChemicaLs Co.,LTD
1,3,5-tri-O-benzoyl-a-D-Ribofu
Address: Suite 502,Unit 3, Building 3 Tucuiyuan,Lakeside Garden,No.176 Wenyi West-Road, HangZhou,China,
Hangzhou, Zhejiang
China, 310008
Tel: 0086-571-88233073
Fax: 0086-571-88233092
