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(-)-4'-METHYLTARTRANILIC ACID - CAS 206761-78-6

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Category
Main Product
Product Name
(-)-4'-METHYLTARTRANILIC ACID
Catalog Number
206761-78-6
Synonyms
(-)-4'-METHYLTARTRANILIC ACID
CAS Number
206761-78-6
Molecular Weight
239.22
Molecular Formula
C11H13NO5
COA
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MSDS
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Canonical SMILES
CC1=CC=C(C=C1)NC(=O)C(C(C(=O)O)O)O
InChI
InChI=1S/C11H13NO5/c1-6-2-4-7(5-3-6)12-10(15)8(13)9(14)11(16)17/h2-5,8-9,13-14H,1H3,(H,12,15)(H,16,17)/t8-,9-/m0/s1
InChIKey
XUPDOKFGWPFCPJ-IUCAKERBSA-N
Structure
CAS 206761-78-6 (-)-4'-METHYLTARTRANILIC ACID
Specification
Purity
95%
Boiling Point
576.3ºC at 760mmHg
Melting Point
191ºC
Density
1.474g/cm3
Reference Reading
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.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.
3.Influence of Mining Pollution on Metal Bioaccumulation and Biomarker Responses in Cave Dwelling Fish, Clarias gariepinus.
du Preez G1, Wepener V2. Bull Environ Contam Toxicol. 2016 Apr 16. [Epub ahead of print]
Cave ecosystems remain largely unstudied and risk being severely degraded as a result of anthropogenic activities. The Wonderfontein Cave, situated in the extensive gold mining region of the Witwatersrand Basin, is one such system that hosts a population of Clarias gariepinus, which is exposed to the influx of polluted mine water from the Wonderfontein Spruit River. The aim of this study was to investigate the bioaccumulation of metals, as well as relevant biomarkers, in C. gariepinus specimens sampled from the Wonderfontein Cave during high (April 2013) and low (September 2013) flow surveys. Results were also compared to a surface population associated with the Wonderfontein Spruit River. There were temporal differences in metal bioaccumulation patterns and this was attributed to the lack of dilution during the low flow period. Metals associated with acid mine drainage, i.e. Co, Mn and Zn were significantly higher in the Wonderfontein Cave population and were reflected in an increase in oxidative stress biomarkers (catalase, protein carbonyls and superoxide dismutase) and the induction of metallothionein, a biomarker of metal exposure.
4.Enhanced adsorption of Cr(VI) from water by guar gum based composite hydrogels.
Maity J1, Ray SK2. Int J Biol Macromol. 2016 Apr 13. pii: S0141-8130(16)30344-0. doi: 10.1016/j.ijbiomac.2016.04.036. [Epub ahead of print]
Composite hydrogels were prepared by in situ incorporation of a natural macromolecule guar gum and nano sized bentonite clay in an acrylic network during copolymerization of acrylic acid, N,N-methylenebisacrylamide (MBA) and hydroxyethyl methacrlylate (HEMA) in water. The structure of the hydrogels was characterized and the hydrogels showing the best results in mechanical and swelling properties were used for the removal of low (5-50mg/L) and high (100-800mg/L) concentration of Cr (VI) ions from water. The composite hydrogel showed a high removal of 97.8% (4.89mg/g gel) and 91.4% (182.4mg/g gel) at an initial feed metal ion concentration of 5mg/L and 200mg/L, respectively.
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