The product is considered a 'powder' rather than 'crystalline'. There is typically water present in this material. This information is lot specific and reported in the Certificate of Analysis. While there is not specification in place, recent lots have reported a range of 7.2 - 9.2%. Please see the link below to review a sample or lot specific Certificate:
https://www.sigmaaldrich.com/product/sigma/p4126#product-documentation
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P4126
Phe-Phe
≥98% (TLC)
Synonym(e):
L-Phenylalanyl-L-phenylalanine, Di-L-phenylalanine
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1 G
CHF 232.00
About This Item
Lineare Formel:
C6H5CH2CH(NH2)CONHCH(CH2C6H5)COOH · H2O
CAS-Nummer:
Molekulargewicht:
312.36 (anhydrous basis)
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352202
PubChem Substanz-ID:
NACRES:
NA.26
Empfohlene Produkte
Produktbezeichnung
Phe-Phe,
Assay
≥98% (TLC)
Form
powder
Farbe
white
Lagertemp.
−20°C
SMILES String
N[C@@H](Cc1ccccc1)C(=O)N[C@@H](Cc2ccccc2)C(O)=O
InChI
1S/C18H20N2O3/c19-15(11-13-7-3-1-4-8-13)17(21)20-16(18(22)23)12-14-9-5-2-6-10-14/h1-10,15-16H,11-12,19H2,(H,20,21)(H,22,23)/t15-,16-/m0/s1
InChIKey
GKZIWHRNKRBEOH-HOTGVXAUSA-N
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Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
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Robert C Dunbar et al.
Journal of the American Chemical Society, 133(5), 1212-1215 (2011-01-05)
Chirality reversal of a residue in a peptide can change its mode of binding to a metal ion, as shown here experimentally by gas-phase IR spectroscopy of peptide-metal ion complexes. The binding conformations of Li(+), Na(+), and H(+) with the
H Mozsolits et al.
Biophysical journal, 77(3), 1428-1444 (1999-08-31)
The interaction of three bioactive peptides, bombesin, beta-endorphin, and glucagon with a phosphatidylcholine monolayer that was immobilized to porous silica particles and packed into a stainless steel column cartridge, has been studied using dynamic elution techniques. This immobilized lipid monolayer
Meital Reches et al.
Science (New York, N.Y.), 300(5619), 625-627 (2003-04-26)
Tubular nanostructures are suggested to have a wide range of applications in nanotechnology. We report our observation of the self-assembly of a very short peptide, the Alzheimer's beta-amyloid diphenylalanine structural motif, into discrete and stiff nanotubes. Reduction of ionic silver
Gabriel Riquelme et al.
Metabolites, 10(10) (2020-10-22)
Preprocessing data in a reproducible and robust way is one of the current challenges in untargeted metabolomics workflows. Data curation in liquid chromatography-mass spectrometry (LC-MS) involves the removal of biologically non-relevant features (retention time, m/z pairs) to retain only high-quality
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Is the powder crystalline? are there water molecules trapped inside it?
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