Quality Level
grade
certified reference material, pharmaceutical secondary standard
agency
traceable to Ph. Eur. T2610000, traceable to USP 1700501
API family
tryptophan
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
2-30°C
SMILES string
[nH]1c2c(c(c1)CC(N)C(=O)O)cccc2
InChI
1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)
InChI key
QIVBCDIJIAJPQS-UHFFFAOYSA-N
General description
Tryptophan is an essential amino acid and a precursor for the synthesis of serotonin (5-HT), a neuromodulator responsible for modulating sleep and appetite regulation.
Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to in-house working standards.
Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to in-house working standards.
Application
Tryptophan may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by spectrophotometric techniques.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Analysis Note
These secondary standards offer multi-traceability to the USP and EP (PhEur) primary standards, where they are available.
Other Notes
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
To see an example of a Certificate of Analysis for this material enter LRAB2382 in the slot below. This is an example certificate only and may not be the lot that you receive.
Values of analytes vary lot to lot.
저장 등급
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
시험 성적서(COA)
제품의 로트/배치 번호를 입력하여 분석 증명서(COA)를 검색하십시오. 로트 및 배치 번호는 제품 라벨의 ‘Lot’ 또는 ‘Batch’라는 단어 뒤에 기재되어 있습니다.
The use of carbon paste electrode in the direct voltammetric determination of tryptophan in pharmaceutical formulations
Fiorucci AR, et al.
Journal of Pharmaceutical and Biomedical Analysis, 28(5), 909-915 (2002)
Evolution of tryptophan and its foremost metabolites? concentrations in milk and fermented dairy products
Bertazzo A, et al.
PharmaNutrition, 4(2), 62-67 (2016)
Differential spectrophotometric determination of tyrosine and tryptophan in pharmaceutical amino acid solutions
Demeester J, et al.
Journal of Pharmaceutical Sciences, 67(5), 729-730 (1978)