PHR1105
L-Leucine
Pharmaceutical Secondary Standard; Certified Reference Material
동의어(들):
(S)-2-Amino-4-methylpentanoic acid
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크기 선택
제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
(CH3)2CHCH2CH(NH2)CO2H
CAS 번호:
Molecular Weight:
131.17
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-522-0
Beilstein/REAXYS Number:
1721722
MDL number:
grade
certified reference material, pharmaceutical secondary standard
agency
traceable to Ph. Eur. L0375000, traceable to USP 1357001
API family
leucine
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
Quality Level
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
2-8°C
유사한 제품을 찾으십니까? 방문 제품 비교 안내
General description
Leucine is a non-glucogenic, essential amino acid and a structural component of proteins.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Application
L-Leucine may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using high-performance liquid chromatography technique.
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 LRAA6929 in the slot below. This is an example certificate only and may not be the lot that you receive.
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 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.
HPLC-fluorescence determination of amino acids in pharmaceuticals after pre-column derivatization with phanquinone
Gatti.R, et al.
Journal of Pharmaceutical and Biomedical Analysis, 35(2), 339-348 (2004)
Sebastian Kalamajski et al.
Matrix biology : journal of the International Society for Matrix Biology, 29(4), 248-253 (2010-01-19)
Small leucine-rich proteoglycans/proteins (SLRPs) are associated with collagen fibril formation, and therefore important for the proper formation of extracellular matrices. SLRPs are differentially expressed in tissues and during pathological conditions, contributing to the development of connective tissue properties. The binding
Qian Wang et al.
Journal of the National Cancer Institute, 105(19), 1463-1473 (2013-09-21)
L-type amino acid transporters (LATs) uptake neutral amino acids including L-leucine into cells, stimulating mammalian target of rapamycin complex 1 signaling and protein synthesis. LAT1 and LAT3 are overexpressed at different stages of prostate cancer, and they are responsible for
M Sakamoto et al.
The Journal of clinical endocrinology and metabolism, 56(1), 202-204 (1983-01-01)
Recent studies on the nucleotide sequence of cloned DNA complementary to mRNA for preproenkephalin from bovine adrenal medulla and human pheochromocytoma have revealed that this precursor molecule contains four copies of methionine-enkephalin (Met-Enk) and one copy each of leucine-enkephalin (Leu-Enk)
T Yoshimasa et al.
The Journal of clinical investigation, 69(3), 643-650 (1982-03-01)
To elucidate the physiological and pathophysiological significance of methionine- and leucine-enkephalin (Met-and Leu-enkephalin, respectively) in human sympathoadrenal system, the contents of these peptides in normal human sympathetic nervous system, adrenal medulla, and pheochromocytomas were determined by specific radioimmunoassays combined with
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