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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

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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 117,30€
box price per unit
A1645,0500
code
A1645,0500
packaging size
500 g
price per unit
single 402,10€
box price per unit
A1645,1000
code
A1645,1000
packaging size
1 kg
price per unit
single 675,80€
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