产品名称

L-色氨酸

CAS NO

73-22-3

中文别名

L-2-氨基-3-吲哚丙酸;L-胰化蛋白氨基酸;L-氨基吲哚丙酸;L-β-(3-吲哚基)-α-丙氨酸;L-色氨酸;L-2-氨基-3-吲哚基丙酸;(+/-)-2-氨基-3-(3-吲哚基)丙酸;L-2-氨基-3-吲哚基-1-丙酸;L-色氨基酸;L-胰化蛋白氨基酸;L-2-氨基-3-吲哚基-丙酸

英文名称

L-Tryptophan

英文别名

L-Trp;L-2-amino-3-indolepropioinc acid;L-β-3-indolylalanine

分子式

C₁₁H₁₂N₂O₂

分子量

204.23

EINECS

200-795-6

熔点

289-290 °C (dec.)(lit.)

沸点

447.908 °C at 760 mmHg

毒性

L-Tryptophan	CAS NO：73-22-3
Chemical Name	L-Tryptophan
Molecular Structure
Molecular Formula	C11H12N2O2
Molecular Weight	204.23
Characteristics	White to yellowish white crystalline powder
Packing	25㎏/drum，25㎏/carton
Quality  Standard	AJI92/USP28/EP5/FCCIV

Specification

Specific rotation[a]D20°	-30.5°~-32.5°
State of solution	Clear
(Tranamittance)	≥95.0%
Chloride(Cl)	≤0.02%
Ammonium(NH4)	≤0.02%
Sulfate(SO4)	≤0.020%
Iron(Fe)	≤20PPm
Heavy metals(Pb)	≤10PPm
Arsenic(As2O3)	≤1PPm
Other amio acids	conforms
Loss on drying	≤0.20%
Residue on ignition(Sulfated)	≤0.10%
Assay	99.0～100.5%
PH	5.4～6.4