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jasco p 2000 polarimeter  (JASCO Inc)


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    Structured Review

    JASCO Inc jasco p 2000 polarimeter
    Jasco P 2000 Polarimeter, supplied by JASCO Inc, used in various techniques. Bioz Stars score: 99/100, based on 27348 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/jasco+p/JASCO+Digital+Polarimeter/pm42600822-253-7-7
    Average 99 stars, based on 27348 article reviews
    jasco p 2000 polarimeter - by Bioz Stars, 2026-09
    99/100 stars

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    other:

    Article Title: Four New Naphthalene Glycosides From the Green Walnut Husks of Juglans mandshurica Maxim.
    Article Snippet: Phytochemical investigation on the 75% EtOH fraction of the green walnut husks of Juglans mandshurica Maxim led to the isolation of four new naphthalene glycosides, Juglophenoside I ( 1 ), Juglophenoside II ( 2 ), Juglanoside R ( 3 ), juglanbioside F ( 4 ) as well as 13 known naphthalene compounds ( 5 17 ).. Structural elucidation of all compounds was carried out by spectroscopic methods such as 1D and 2D NMR spectroscopy (1 H-1 HCOSY, HSQC, and HMBC), and high resolution mass spectrometry.. Moreover the compounds were evaluated for their cytotoxic activities against three cancer cell lines BGC-823, Hela, and HepG-2.

    Article Title: Strebluses A and B as tyrosinase inhibitors from the stems of Streblus ilicifolius (S. Vidal) Corn
    Article Snippet: Optical rotations were measured using a Jasco P-2000 digital polarimeter.

    Article Title: Discovery of undescribed steroids with anti-inflammatory and anti-hepatic fibrosis activities from the Formosan soft coral Sclerophytum leptoclados
    Article Snippet: The specific rotation was measured using a Jasco P-1010 digital polarimeter (Japan Spectroscopic Corporation, Tokyo, Japan).

    Article Title: Trichostatin Analogues From the Karst Cave Associated Streptomyces sp. DX6D14.
    Article Snippet: Six new trichostatin analogs, designated karstmycins I − M ( 1 − 6 ), together with eight known congeners ( 7 − 14 ), were obtained from Streptomyces sp. DX6D14 isolated from the soil of the karst cave.. The structures of the new compounds were elucidated through spectroscopic analysis, including high-resolution electron spray ionization mass spectrometry (HRESIMS) and nuclear magnetic resonance (NMR), and electronic circular dichroism (ECD) calculations.. All the isolates were evaluated for antibacterial and cytotoxic activities.

    Article Title: Palbinone derivatives from the roots of Paeonia lactiflora as potent α-glucosidase inhibitors
    Article Snippet: Bioassay-guided fractionation of the ethanolic extract from Paeonia lactiflora roots led to the isolation of two new octanortriterpenoids, paeonones C and D (1 and 2), together with two known analogs, paeonone A (3) and palbinone (4).. Structurally, compounds 1 and 2 represent rare highly degraded and oxidized triterpenoids, expanding the structural diversity of palbinone derivatives.. Their absolute structures were elucidated by extensive spectroscopic analyses and unambiguously confirmed by X-ray crystallographic diffraction.

    Article Title: The effect of trifluoroacetic acid on the endocyclic cleavage of ethyl 1-thio-β-d-manno-, gluco-, galacto- and β-l-fucopyranosides with bulky silyl groups.
    Article Snippet: Earlier we found that the treatment of ethyl 1-thio-β-D-galactopyranoside containing triisopropylsilyl (TIPS) groups at O-2 and O-3 with TFA–CH2Cl2 led to the corresponding 2,3-bis-O-silylated 1-thio-D-galactofuranoside.. However, when ethyl 1-thio-β-D-glucopyranoside with TIPS groups at O-2 and O-3 was treated under identical acidic conditions, formation of 2,3-bis-O-silylated 1-thio-β-D-glucofuranoside was accompanied by anomerization to ethyl 1-thio-α-D-glucopyranoside.. In current investigation we observed that the rearrangement of ethyl 1-thioβ-L-fucopyranoside with TIPS groups at O-2 and O-3 led to the anomeric mixture of the corresponding ethyl 1thio-L-fucofuranosides, which can be easily separated.

    Spectrophotometry:

    Article Title: New antibacterial 2-bromopyrrole-2-aminoimidazolinone alkaloids, 10 E -dispacamide B and (+)-10 E -dispacamide D, from a sponge Agelas nakamurai (Hoshino, 1985)
    Article Snippet: .. Optical rotations, IR spectra, and UV spectra were measured using a JASCO P-1020 digital polarimeter, JASCO FT/IR-4100 spectrometer, and JASCO V-650 spectrophotometer (JASCO Corporation, Tokyo, Japan), respectively. .. ESIMS and HRESIMS data were acquired using a Bruker APEX II mass spectrometer (Bruker, Bremen, Germany) and a Thermo Orbitrap QE mass spectrometer equipped with an ESI source operating in positive-ion mode, respectively.



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    JASCO Inc jasco p 2000 digital polarimeter
    <t>HPLC</t> profiling and spiking chromatograms of LJ‐M and isolated compounds. (A) HPLC chromatogram of LJ‐M, observed at 230 nm wavelength. (B) HPLC spike profiling. The blue trace represents the LJM fraction spiked with the mixture of isolated Compounds 1 – 6 ; the black trace represents the isolated Compounds 1 – 6 mixture alone; and the red trace represents the LJ‐M fraction.
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    JASCO Inc jasco p 2000 spectrometer
    <t>HPLC</t> profiling and spiking chromatograms of LJ‐M and isolated compounds. (A) HPLC chromatogram of LJ‐M, observed at 230 nm wavelength. (B) HPLC spike profiling. The blue trace represents the LJM fraction spiked with the mixture of isolated Compounds 1 – 6 ; the black trace represents the isolated Compounds 1 – 6 mixture alone; and the red trace represents the LJ‐M fraction.
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    JASCO Inc jasco p 2000
    <t>HPLC</t> profiling and spiking chromatograms of LJ‐M and isolated compounds. (A) HPLC chromatogram of LJ‐M, observed at 230 nm wavelength. (B) HPLC spike profiling. The blue trace represents the LJM fraction spiked with the mixture of isolated Compounds 1 – 6 ; the black trace represents the isolated Compounds 1 – 6 mixture alone; and the red trace represents the LJ‐M fraction.
    Jasco P 2000, supplied by JASCO Inc, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/jasco+p/JASCO+Digital+Polarimeter/pm42557025-135-8-10
    Average 99 stars, based on 1 article reviews
    jasco p 2000 - by Bioz Stars, 2026-09
    99/100 stars
      Buy from Supplier

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    HPLC profiling and spiking chromatograms of LJ‐M and isolated compounds. (A) HPLC chromatogram of LJ‐M, observed at 230 nm wavelength. (B) HPLC spike profiling. The blue trace represents the LJM fraction spiked with the mixture of isolated Compounds 1 – 6 ; the black trace represents the isolated Compounds 1 – 6 mixture alone; and the red trace represents the LJ‐M fraction.

    Journal: Archiv Der Pharmazie

    Article Title: Discovery of VEGFR‐2 Inhibitors From Leonurus japonicus via Integrated Genetic Authentication, Molecular Networking, and In Silico Analysis

    doi: 10.1002/ardp.70249

    Figure Lengend Snippet: HPLC profiling and spiking chromatograms of LJ‐M and isolated compounds. (A) HPLC chromatogram of LJ‐M, observed at 230 nm wavelength. (B) HPLC spike profiling. The blue trace represents the LJM fraction spiked with the mixture of isolated Compounds 1 – 6 ; the black trace represents the isolated Compounds 1 – 6 mixture alone; and the red trace represents the LJ‐M fraction.

    Article Snippet: Optical rotations were determined using a JASCO P‐2000 digital polarimeter (JASCO Corporation, Tokyo, Japan).

    Techniques: Isolation