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
P4126
Phe-Phe
≥98% (TLC)
Synonym(s):
L-Phenylalanyl-L-phenylalanine, Di-L-phenylalanine
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About This Item
Linear Formula:
C6H5CH2CH(NH2)CONHCH(CH2C6H5)COOH · H2O
CAS Number:
Molecular Weight:
312.36 (anhydrous basis)
NACRES:
NA.26
PubChem Substance ID:
UNSPSC Code:
12352202
EC Number:
219-930-5
MDL number:
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Product Name
Phe-Phe,
InChI key
GKZIWHRNKRBEOH-HOTGVXAUSA-N
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
SMILES string
N[C@@H](Cc1ccccc1)C(=O)N[C@@H](Cc2ccccc2)C(O)=O
assay
≥98% (TLC)
form
powder
color
white
storage temp.
−20°C
Quality Level
Looking for similar products? Visit Product Comparison Guide
1 of 4
This Item | G2752 | 15013 | SML3487 |
|---|---|---|---|
| form powder | form crystalline | form powder | form powder |
| assay ≥98% (TLC) | assay ≥97.0% (TLC) | assay ≥98.0% (TLC) | assay ≥98% (HPLC) |
| storage temp. −20°C | storage temp. −20°C | storage temp. - | storage temp. room temp |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| color white | color white | color - | color white to beige |
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Supramolecular nanofibers and hydrogels of nucleopeptides.
Xinming Li et al.
Angewandte Chemie (International ed. in English), 50(40), 9365-9369 (2011-09-29)
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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