Boc-L-α-aminobutyric acid
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Boc-L-α-aminobutyric acid

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Category
BOC-Amino Acids
Catalog number
BAT-007126
CAS number
34306-42-8
Molecular Formula
C9H17NO4
Molecular Weight
203.24
Boc-L-α-aminobutyric acid
IUPAC Name
(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoic acid
Synonyms
Boc-L-Abu-OH; Boc-L-2-aminobutanoic acid; Boc L Abu OH
Appearance
White to off-white powder
Purity
≥ 98% (HPLC)
Density
1.101 g/cm3
Melting Point
70-74 °C
Boiling Point
334.5°C at 760 mmHg
Storage
Store at 2-8 °C
InChI
InChI=1S/C9H17NO4/c1-5-6(7(11)12)10-8(13)14-9(2,3)4/h6H,5H2,1-4H3,(H,10,13)(H,11,12)/t6-/m0/s1
InChI Key
PNFVIPIQXAIUAY-LURJTMIESA-N
Canonical SMILES
CCC(C(=O)O)NC(=O)OC(C)(C)C
1.Enhanced coagulation-photocatalytic treatment of Acid red 73 dye and real textile wastewater using UVA/synthesized MgO nanoparticles.
Jorfi S1, Barzegar G2, Ahmadi M3, Darvishi Cheshmeh Soltani R4, Alah Jafarzadeh Haghighifard N5, Takdastan A6, Saeedi R7, Abtahi M8. J Environ Manage. 2016 Apr 14;177:111-118. doi: 10.1016/j.jenvman.2016.04.005. [Epub ahead of print]
Sequencing coagulation - photocatalytic degradation using UVA/MgO nanoparticles process was investigated for Acid red 73dye removal and then treatment of a real textile wastewater. Effective operational parameters including pH and coagulant and photocatalyst dosage were studied in synthetic wastewater and then the process was applied for real wastewater. Both coagulation and photocatalytic processes were pH dependent. At coagulant dosage of 200 mg/L and initial pH of 6, the dye concentration decreased from 200 to 31 mg/L. Complete removal of AR73 was observed with MgO nanoparticles of 0.8 g/L, initial pH of 5 and reaction time of 60 min. Langmuir-Hinshelwood model was well fitted with removal results (R2: 0.939-0.988 for different initial dye concentration). In the case of real textile wastewater, the sequence coagulation-UVA/MgO nanoparticles photocatalytic degradation yielded considerable total COD and TOC removal 98.3% and 86.9%respectively, after 300 min.
2.Accelerating full thickness wound healing using Collagen Sponge of Mrigal Fish (Cirrhinus cirrhosus) scale Origin.
Pal P1, Srivas PK1, Dadhich P1, Das B1, Maity PP1, Moulik D2, Dhara S3. Int J Biol Macromol. 2016 Apr 13. pii: S0141-8130(16)30340-3. doi: 10.1016/j.ijbiomac.2016.04.032. [Epub ahead of print]
The potentiality of collagen sponge as a skin substitute, derived from mrigal (Cirrhinus cirrhosus) scale has been explored in this study. Acid soluble collagen (ASC) and pepsin soluble collagen (PSC) from the scale of mrigal were isolated and characterized. The yields of ASC and PSC were ∼3% and ∼7% based on the dry weight of scale while the hydroxyproline content was ∼90mg/g. Scanning electron microscope revealed progressive demineralization with EDTA on time dependent scale. Further, the D-Spacing in fibril bundles were calculated to be ∼67nm. Fourier transform infrared and circular dichroism spectra confirmed extracted protein to be collagen I, where both ASC and PSC comprised of two different α-chains (α1 and α2). The denaturation temperature (Td) of the collagen solution was 35°C closer to Td of mammalian collagen. In vitro cell culture studies on the extracted collagen sponge showed efficient cell growth and proliferation. Additionally, co-culture with fibroblast and keratinocyte cells showed development of stratified epidermal layer in vitro.
3.Lipoic Acid Exerts Antioxidant and Anti-inflammatory Effects in Response to Heat Shock in C2C12 Myotubes.
Lee CT1, Chang LC2, Wu PF3. Inflammation. 2016 Apr 16. [Epub ahead of print]
This study explored that lipoic acid treatment for 24 h significantly upregulated and promoted heat shock-induced catalase expression and downregulated GPx1 messenger RNA (mRNA) expression, indicating that lipoic acid exhibits antioxidant activity in the decomposition of hydrogen peroxide by upregulating catalase expression. Moreover, lipoic acid treatment for 3 h increased and promoted heat shock-induced interleukin (IL)-6 mRNA and protein levels and that for 24 h downregulated IL-6 mRNA expression, suggesting a dual effect of lipoic acid on IL-6 regulation. Lipoic acid alone failed to increase or reduce tumor necrosis factor (TNF)-α mRNA and protein levels, whereas heat shock alone downregulated TNF-α mRNA and protein expression. These data suggest that lipoic acid does not have a proinflammatory role and that heat shock acts as an anti-inflammatory agent by downregulating TNF-α expression in C2C12 myotubes. Moreover, lipoic acid or heat shock alone upregulated the IL-6 receptor (IL-6R-α) and glycoprotein 130 (gp130) mRNA expression followed by IL-6 expression; these data indicate that the regulation of lipoic acid or heat shock is mediated by IL-6R signaling, thus suggesting that C2C12 myotubes possesses a mechanism for regulating IL-6R and gp130 expression following lipoic acid treatment or heat shock.
4.Multivalent hyaluronic acid bioconjugates improve sFlt-1 activity in vitro.
Altiok EI1, Santiago-Ortiz JL2, Svedlund FL3, Zbinden A1, Jha AK1, Bhatnagar D1, Loskill P4, Jackson WM1, Schaffer DV5, Healy KE6. Biomaterials. 2016 Mar 12;93:95-105. doi: 10.1016/j.biomaterials.2016.03.017. [Epub ahead of print]
Anti-VEGF drugs that are used in conjunction with laser ablation to treat patients with diabetic retinopathy suffer from short half-lives in the vitreous of the eye resulting in the need for frequent intravitreal injections. To improve the intravitreal half-life of anti-VEGF drugs, such as the VEGF decoy receptor sFlt-1, we developed multivalent bioconjugates of sFlt-1 grafted to linear hyaluronic acid (HyA) chains termed mvsFlt. Using size exclusion chromatography with multiangle light scattering (SEC-MALS), SDS-PAGE, and dynamic light scattering (DLS), we characterized the mvsFlt with a focus on the molecular weight contribution of protein and HyA components to the overall bioconjugate size. We found that mvsFlt activity was independent of HyA conjugation using a sandwich ELISA and in vitro angiogenesis assays including cell survival, migration and tube formation. Using an in vitro model of the vitreous with crosslinked HyA gels, we demonstrated that larger mvsFlt bioconjugates showed slowed release and mobility in these hydrogels compared to low molecular weight mvsFlt and unconjugated sFlt-1.
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