L-Tryptophan, Pharmpur®, Ph Eur, BP, USP

CAS number: 73-22-3
Manufacturer product code: TR0400

Scharlau TR04000100: L-Tryptophan, Pharmpur®, Ph Eur, BP, USP. Laboratory work with biochemical reagents according to the stated grade.

Applications

Laboratory work with biochemical reagents according to the stated grade.

Packaging options

TR04000025 — 25 g — Glass bottleTR04000100 — 100 g — Glass bottle

Product specifications and documentation are confirmed against the requested reference before quotation.

Product information

Overview

Scharlau TR04000100: L-Tryptophan, Pharmpur®, Ph Eur, BP, USP. CAS 73-22-3. M = 204,23 g/mol; Melting point: 290 ºC (decomposes); appearance of solution: passes test; pH (1 %, H2O): 5,5 - 7,0. Laboratory work with biochemical reagents according to the stated grade.

CAS number: 73-22-3
Pack quantity / capacity: 100
Measurement unit: Gram (g)
Package type: Glass bottle

Packaging and references

100 g · Glass bottle
TR04000025 — 25 g — Glass bottle
TR04000100 — 100 g — Glass bottle

Selected specifications

Synonyms: (S)-a-Amino-1H-indole-3-propanoic acid
C11H12N2O2
M = 204,23 g/mol
CAS [73-22-3]
EINECS-No.: 200-795-6
Solub. in water: (20 ºC): 10 g/l
Melting point: 290 ºC (decomposes)
LD 50 (oral, rat): 16000 mg/kg
Tariff number: 2933 99 80 90
SPECIFICATIONS
dried sample) : 98,5 - 101,0 %
Identification TLC: passes test
Identification D (EP): passes test
appearance of solution: passes test
pH (1 %, H2O): 5,5 - 7,0
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 300 ppm
ammonium (NH4): max. 0,02 %
specific rotation ([a]20°/D, c = 10, H2O):
referred to dried sample): -33,0 - -30,0
iron (Fe): max. 20 ppm
any ninhydrin-positive substances: max. 0,2 %
total impurities: max. 0,5 %
impurity A and related substances:
impurity A: max. 10 ppm
sum of the impurities with a retention time less than that of tryptophan: max. 100 ppm:
sum of the impurities with a retention time greater than that of tryptophan, up to 1.8 times the retention time of N-acetyltryptophan: : max. 300 ppm
sum of the impurities with a retention time greater than that of tryptophan: max. 300 ppm
residue on ignition: max. 0,1 %
loss on drying (105 ºC): max. 0,3 %

Applications

Laboratory work with biochemical reagents according to the stated grade.

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