We Offer Worldwide Shipping
Login Wishlist

Lethedioside A

$1,280

  • Brand : BIOFRON

  • Catalogue Number : BN-B0061

  • Specification : 98%(HPLC)

  • CAS number : 221289-31-2

  • Formula : C29H34O15

  • Molecular Weight : 622.57

  • PUBCHEM ID : 10394124

  • Volume : 5mg

Available on backorder

Quantity
Checkout Bulk Order?

Catalogue Number

BN-B0061

Analysis Method

HPLC,NMR,MS

Specification

98%(HPLC)

Storage

-20℃

Molecular Weight

622.57

Appearance

Powder

Botanical Source

This product is isolated and purified from the roots of Aquilaria sinensis (Lour.) Spreng.

Structure Type

Flavonoids

Category

Standards;Natural Pytochemical;API

SMILES

COC1=C(C=C(C=C1)C2=CC(=O)C3=C(O2)C=C(C=C3OC4C(C(C(C(O4)COC5C(C(C(CO5)O)O)O)O)O)O)OC)OC

Synonyms

2-(3,4-Dimethoxyphenyl)-7-methoxy-4-oxo-4H-chromen-5-yl 6-O-β-D-xylopyranosyl-β-D-glucopyranoside/4H-1-Benzopyran-4-one, 2-(3,4-dimethoxyphenyl)-7-methoxy-5-[(6-O-β-D-xylopyranosyl-β-D-glucopyranosyl)oxy]-

IUPAC Name

2-(3,4-dimethoxyphenyl)-7-methoxy-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxymethyl]oxan-2-yl]oxychromen-4-one

Applications

Density

1.6±0.1 g/cm3

Solubility

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

Flash Point

290.5±27.8 °C

Boiling Point

890.8±65.0 °C at 760 mmHg

Melting Point

InChl

InChI=1S/C13H18N2O/c1-15(2,3)7-6-10-9-14-13-5-4-11(16)8-12(10)13/h4-5,8-9,14H,6-7H2,1-3H3

InChl Key

OQEZCWWFGXYLQY-YUYUGGDUSA-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#:221289-31-2) 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

29580219

Abstract

Background
Although high-throughput sequencers (HTS) have largely displaced their Sanger counterparts, the short read lengths and high error rates of most platforms constrain their utility for amplicon sequencing. The present study tests the capacity of single molecule, real-time (SMRT) sequencing implemented on the SEQUEL platform to overcome these limitations, employing 658 bp amplicons of the mitochondrial cytochrome c oxidase I gene as a model system.

Results
By examining templates from more than 5000 species and 20,000 specimens, the performance of SMRT sequencing was tested with amplicons showing wide variation in GC composition and varied sequence attributes. SMRT and Sanger sequences were very similar, but SMRT sequencing provided more complete coverage, especially for amplicons with homopolymer tracts. Because it can characterize amplicon pools from 10,000 DNA extracts in a single run, the SEQUEL can reduce greatly reduce sequencing costs in comparison to first (Sanger) and second generation platforms (Illumina, Ion).

Conclusions
SMRT analysis generates high-fidelity sequences from amplicons with varying GC content and is resilient to homopolymer tracts. Analytical costs are low, substantially less than those for first or second generation sequencers. When implemented on the SEQUEL platform, SMRT analysis enables massive amplicon characterization because each instrument can recover sequences from more than 5 million DNA extracts a year.

Electronic supplementary material
The online version of this article (10.1186/s12864-018-4611-3) contains supplementary material, which is available to authorized users.

KEYWORDS

SMRT sequencing, Mitochondrial DNA, Nuclear DNA, Phylogenetics, DNA barcoding, PCR, Nucleotide composition, Homopolymer

Title

A Sequel to Sanger: amplicon sequencing that scales

Author

Paul D. N. Hebert,corresponding author1 Thomas W. A. Braukmann,1 Sean W. J. Prosser,1 Sujeevan Ratnasingham,1 Jeremy R. deWaard,1 Natalia V. Ivanova,1 Daniel H. Janzen,2 Winnie Hallwachs,2 Suresh Naik,1 Jayme E. Sones,1 and Evgeny V. Zakharov1

Publish date

2018;

PMID

32123516

Abstract

Mezcal is a distillate produced by spontaneous fermentation of the must obtained from stalks of Agave spp. plants that are cooked and pressed. Agave must contains a high amount of fructose and phenolic compounds, and fermentation usually occurs under stressful (and uncontrolled) environmental conditions. Yeasts capable of growing under such conditions usually display advantageous biological and industrial traits for stress tolerance such as flocculation. In this study, seven Saccharomyces cerevisiae strains isolated from mezcal must were exposed to temperatures ranging between 10 and 40 °C, and to different sugar sources (fructose or glucose). Yeasts grown in fructose increased their stress tolerance, determined by colony count in a microdrop assay, under low temperature (10 °C) compared to the growth at 40 °C on solid cultures. The most stress-tolerant mezcal strain (Sc3Y8) and a commercial wine (Fermichamp) strain, used as control, were grown under fermentation conditions and exposed to long-term temperature stress to determine their performance and their potential for flocculation. Compared to glucose, fermentation on fructose increased the metabolite accumulation at the end of culture, particularly at 40 °C, with 2.3, 1.3 and 3.4 times more glycerol (8.6 g/L), ethanol (43.6 g/L) and acetic acid (7.3 g/L), respectively. Using confocal microscopy analysis, we detected morphological changes such as aggregation and wall recognition at the level of budding scars in yeast, particularly in the Sc3Y8 strain when it was exposed to 40 °C. The analysis confirmed that this mezcal strain was positive for flocculation in the presence of Ca2+ ions. Analysis of FLO1, FLO5 and FLO11 gene expression implicated in flocculation in both Saccharomyces strains showed a strong transcriptional induction, mainly of the FLO5 gene in the mezcal Sc3Y8 strain.

KEYWORDS

Saccharomyces cerevisiae, flocculation, stress tolerance, fermentation, mezcal, agave must

Title

Flocculation and Expression of FLO Genes of a Saccharomyces cerevisiae Mezcal Strain with High Stress Tolerance

Author

Israel Vergara-alvarez,1,2 Francisco Quiroz-Figueroa,3 Maria Concepcion Tamayo-OrdoNez,1,4 Amanda Alejandra Oliva-Hernandez,1 Claudia Patricia Larralde-Corona,1 and Jose Alberto Narvaez-Zapata1,*

Publish date

2019 Dec;