PHR1176
Tryptophan
Pharmaceutical Secondary Standard; Certified Reference Material
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About This Item
grade
certified reference material
pharmaceutical secondary standard
Quality Level
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
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
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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
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.
Tryptophan may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by spectrophotometric techniques.
Analysis Note
These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.
Other Notes
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.
Values of analytes vary lot to lot.
Footnote
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.
Recommended products
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.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Tryptophan supplementation modulates social behavior: a review
Steenbergen L, et al.
Neuroscience and Biobehavioral Reviews, 64, 346-358 (2016)
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)
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)
Kei Hiruma et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(23), 9589-9594 (2013-05-23)
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