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4‘-Demethyleucomin

$1,280

  • Brand : BIOFRON

  • Catalogue Number : BN-O1485

  • Specification : 98%(HPLC)

  • CAS number : 34818-83-2

  • Formula : C16H14O5 

  • Molecular Weight : 286.3

  • PUBCHEM ID : 15484393

  • Volume : 5mg

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Catalogue Number

BN-O1485

Analysis Method

HPLC,NMR,MS

Specification

98%(HPLC)

Storage

-20℃

Molecular Weight

286.3

Appearance

Yellow powder

Botanical Source

This product is isolated and purified from the herbs of Scilla scilloides

Structure Type

Flavonoids

Category

Standards;Natural Pytochemical;API

SMILES

C1C(=CC2=CC=C(C=C2)O)C(=O)C3=C(C=C(C=C3O1)O)O

Synonyms

(3E)-5,7-Dihydroxy-3-(4-hydroxybenzylidene)-2,3-dihydro-4H-chromen-4-one/4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-, (3E)-/5,7-Dichlor-1-methyl-1,2-dihydro-3H-1,4-benzodiazepin-2-on/demethyleucomine/5,7-Dichlor-1-methyl-1,4-benzodiazepin-2-on/2H-1,4-Benzodiazepin-2-one,5,7-dichloro-1,3-dihydro-1-methyl

IUPAC Name

(3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylidene]chromen-4-one

Density

1.5±0.1 g/cm3

Solubility

Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.

Flash Point

226.4±23.6 °C

Boiling Point

588.3±50.0 °C at 760 mmHg

Melting Point

InChl

InChl Key

PKCWSPYCHMNVKB-BJMVGYQFSA-N

WGK Germany

RID/ADR

HS Code Reference

2933990000

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:34818-83-2) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

No Technical Documents Available For This Product.

PMID

31156705

Abstract

Euphrasia (Orobanchaceae) is a genus which is widely distributed in temperate regions of the southern and northern hemisphere. The taxonomy of Euphrasia is still controversial due to the similarity of morphological characters and a lack of genomic resources. Here, we present the first complete chloroplast (cp) genome of this taxonomically challenging genus. The cp genome of Euphrasia regelii consists of 153,026 bp, including a large single-copy region (83,893 bp), a small single-copy region (15,801 bp) and two inverted repeats (26,666 bp). There are 105 unique genes, including 71 protein-coding genes, 30 tRNA and 4 rRNA genes. Although the structure and gene order is comparable to the one in other angiosperm cp genomes, genes encoding the NAD(P)H dehydrogenase complex are widely pseudogenized due to mutations resulting in frameshifts, and stop codon positions. We detected 36 dispersed repeats, 7 tandem repeats and 65 simple sequence repeat loci in the E. regelii plastome. Comparative analyses indicated that the cp genome of E. regelii is more conserved compared to other hemiparasitic taxa in the Pedicularideae and Buchnereae. No structural rearrangements or loss of genes were detected. Our analyses suggested that three genes (clpP, ycf2 and rps14) were under positive selection and other genes under purifying selection. Phylogenetic analysis of monophyletic Orobanchaceae based on 45 plastomes indicated a close relationship between E. regelii and Neobartsia inaequalis. In addition, autotrophic lineages occupied the earliest diverging branches in our phylogeny, suggesting that autotrophy is the ancestral trait in this parasitic family.

KEYWORDS

Euphrasia regelii, hemiparasite, chloroplast genome, pseudogenization, phylogenetic analyses

Title

The Complete Chloroplast Genome of Euphrasia regelii, Pseudogenization of ndh Genes and the Phylogenetic Relationships Within Orobanchaceae

Author

Tao Zhou,1 Markus Ruhsam,2 Jian Wang,1 Honghong Zhu,1 Wenli Li,1 Xiao Zhang,3 Yucan Xu,1 Fusheng Xu,1 and Xumei Wang1,*

Publish date

2019;

PMID

21578681

Abstract

In the title compound, [Fe(C5H5)(C29H20NO3)], the acenaphthyl­ene ring system makes a dihedral angle of 83.77 (3)° with the indane-1,3-dione ring system. The central pyrrolidine ring exhibits a twist conformation. In the crystal, mol­ecules are linked by a weak inter­molecular C—H⋯O inter­action into a chain along the b axis. Two weak intra­molecular C—H⋯O inter­actions are also present.

Title

4′-Ferrocenyl-1′-methylacenapthylene-1-spiro-2′-pyrrolidine-3′-spiro-2′′-indane-2,1′′,3′′(1H)-trione

Author

B. Gunasekaran,a S. Kathiravan,b R. Raghunathan,b and V. Manivannanc,*

Publish date

2009 Dec 1;

PMID

23698257

Abstract

Objective
To determine the effects of the adoption of ambulatory electronic health information exchange (HIE) on rates of laboratory and radiology testing and allowable charges.

Design
Claims data from the dominant health plan in Mesa County, Colorado, from 1 April 2005 to 31 December 2010 were matched to HIE adoption data on the provider level. Using mixed effects regression models with the quarter as the unit of analysis, the effect of HIE adoption on testing rates and associated charges was assessed.

Results
Claims submitted by 306 providers in 69 practices for 34 818 patients were analyzed. The rate of testing per provider was expressed as tests per 1000 patients per quarter. For primary care providers, the rate of laboratory testing increased over the time span (baseline 1041 tests/1000 patients/quarter, increasing by 13.9 each quarter) and shifted downward with HIE adoption (downward shift of 83, p<0.01). A similar effect was found for specialist providers (baseline 718 tests/1000 patients/quarter, increasing by 19.1 each quarter, with HIE adoption associated with a downward shift of 119, p<0.01). Even so, imputed charges for laboratory tests did not shift downward significantly in either provider group, possibly due to the skewed nature of these data. For radiology testing, HIE adoption was not associated with significant changes in rates or imputed charges in either provider group. Conclusions Ambulatory HIE adoption is unlikely to produce significant direct savings through reductions in rates of testing. The economic benefits of HIE may reside instead in other downstream outcomes of better informed, higher quality care.

Title

Effects of health information exchange adoption on ambulatory testing rates

Author

Stephen E Ross, Tiffany A Radcliff, William G LeBlanc, L Miriam Dickinson, Anne M Libby, Donald E Nease, Jr

Publish date

2013 Nov


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