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L-Tryptophan (Ph. Eur., USP) pure, pharma grade

Assay (titr., calc. on dried subst.): 98.5 - 101.0 %
Code
A1645
CAS
73-22-3
Molecular Formula
C11H12N2O2
Molar mass
204.23 g/mol

Recommended prices only. For prices and orders please contact your local distributor.
Box prices only valid with purchase of full box.

code packaging size price per unit box price per unit
Code & packaging Price per piece
A1645,0100
code
A1645,0100
packaging size
100 g
price per unit
single $175,95
box price per unit
A1645,0500
code
A1645,0500
packaging size
500 g
price per unit
single $603,15
box price per unit
A1645,1000
code
A1645,1000
packaging size
1 kg
price per unit
single $1013,70
box price per unit
Solubility:
10 g/L (H2O)
Physical Description:
Solid
Product Code:
A1645
Product Name:
L-Tryptophan (Ph. Eur., USP) pure, pharma grade
Headline Comment:
• All amino acids from AppliChem are of non-animal origin!
Specifications:
Assay (titr., calc. on dried subst.): 98.5 - 101.0 %
α20°C/D; 1 %, H2O, calc. on dried subst.: -33.0° - -30.0°
Appearance of solution: passes test
Identity: passes test
pH (1 %; H2O; 20°C): 5.5 - 7.0
Heavy metals (as Pb): max. 0.0015 %
Sulfated ash: max. 0.1 %
Loss on drying (3 h; 105°C): max. 0.3 %
α25°C/D; 1 %, H2O: -32.8° - -29.4°
Ammonium: max. 0.02 %
Chloride: max. 0.02 %
Sulfate: max. 0.03 %
Fe: max. 0.002 %
Ninhydrin positive substances (HPLC)
each individual impurity: max. 0.2 %
Total impurities: max. 0.5 %
Impurity A and other related subst. (HPLC)
Total impurity befor Tryptophan: max. 0.01 %
Total impurity afterTryptophan: max. 0.03 %
Impurity A: max. 0.001 %
WGK:
1
Storage:
RT
EINECS:
200-795-6
CS:
29339980
Download TDS file for complete specifications