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Qingyangshengenin A

$600

  • Brand : BIOFRON

  • Catalogue Number : BD-D0059

  • Specification : HPLC≥98%

  • CAS number : 106644-33-1

  • Formula : C28H36O8

  • Molecular Weight : 500.584

  • PUBCHEM ID : 101953010

  • Volume : 20mg

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Catalogue Number

BD-D0059

Analysis Method

HPLC,NMR,MS

Specification

HPLC≥98%

Storage

2-8°C

Molecular Weight

500.584

Appearance

Powder

Botanical Source

Structure Type

Category

Standards;Natural Pytochemical;API

SMILES

CC1C(C(CC(O1)OC2C(OC(CC2OC)OC3C(OC(CC3OC)OC4CCC5(C6CC(C7(C(CCC7(C6(CC=C5C4)O)O)(C(=O)C)O)C)OC(=O)C8=CC=C(C=C8)O)C)C)C)OC)O

Synonyms

(3β,12β,14β,17α)-3-{[2,6-Dideoxy-3-O-methyl-β-D-arabino-hexopyranosyl-(1->;4)-2,6-dideoxy-3-O-methyl-β-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-3-O-methyl-β-D-ribo-hexopyranosyl]ox y}-8,14,17-trihydroxy-20-oxopregn-5-en-12-yl 4-hydroxybenzoate/Benzoic acid, 4-hydroxy-, (3β,12β,14β,17α)-3-[[O-2,6-dideoxy-3-O-methyl-β-D-arabino-hexopyranosyl-(1->4)-O-2,6-dideoxy-3-O-methyl-β-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-3-O-methy l-β-D-ribo-hexopyranosyl]oxy]-8,14,17-trihydroxy-20-oxopregn-5-en-12-yl ester/Qingyangshengenin-A/Qingyangshengenin A

IUPAC Name

[(3S,8S,9R,10R,12R,13S,14R,17S)-17-acetyl-8,14,17-trihydroxy-3-[(2R,4S,5R,6R)-5-[(2S,4S,5R,6R)-5-[(2S,4R,5R,6R)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-4-methoxy-6-methyloxan-2-yl]oxy-4-methoxy-6-methyloxan-2-yl]oxy-10,13-dimethyl-1,2,3,4,7,9,11,12,15,16-decahydrocyclopenta[a]phenanthren-12-yl] 4-hydroxybenzoate

Applications

Qingyangshengenin A, a C-21 steroidal glycoside isolated from the roots of Cynanchum otophyllum Schneid, has antiepileptic activity[1].

Density

1.3±0.1 g/cm3

Solubility

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

Flash Point

266.6±27.8 °C

Boiling Point

945.4±65.0 °C at 760 mmHg

Melting Point

InChl

InChI=1S/C49H72O17/c1-25-41(52)33(57-7)21-39(60-25)65-43-27(3)62-40(23-35(43)59-9)66-42-26(2)61-38(22-34(42)58-8)63-32-15-16-45(5)30(20-32)14-17-48(55)36(45)24-37(64-44(53)29-10-12-31(51)13-11-29)46(6)47(54,28(4)50)18-19-49(46,48)56/h10-14,25-27,32-43,51-52,54-56H,15-24H2,1-9H3/t25-,26-,27-,32+,33-,34+,35+,36-,37-,38+,39+,40+,41-,42-,43-,45+,46-,47-,48+,49-/m1/s1

InChl Key

RSTNGBYEJQYFEJ-BVRKUPONSA-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#:106644-33-1) 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

25538767

Abstract

A self-organizing feature map (SOM) was used to represent vehicle-following and to analyze the heterogeneities in vehicle-following behavior. The SOM was constructed in such a way that the prototype vectors represented vehicle-following stimuli (the follower’s velocity, relative velocity, and gap) while the output signals represented the response (the follower’s acceleration). Vehicle trajectories collected at a northbound segment of Interstate 80 Freeway at Emeryville, CA, were used to train the SOM. The trajectory information of two selected pairs of passenger cars was then fed into the trained SOM to identify similar stimuli experienced by the followers. The observed responses, when the stimuli were classified by the SOM into the same category, were compared to discover the interdriver heterogeneity. The acceleration profile of another passenger car was analyzed in the same fashion to observe the interdriver heterogeneity. The distribution of responses derived from data sets of car-following-car and car-following-truck, respectively, was compared to ascertain inter-vehicle-type heterogeneity.

Title

Analysis of Vehicle-Following Heterogeneity Using Self-Organizing Feature Maps

Author

Jie Yang, 1 , * Ruey Long Cheu, 2 Xiucheng Guo, 3 and Alicia Romo 4

Publish date

2014 Nov 5

Title

Association News

Publish date

1985 December

PMID

31275035

Abstract

The xylem vessel is an essential structure for water conduction in vascular plants. Xylem vessel cells deposit thick secondary cell walls and undergo programmed cell death, to function as water-conducting elements. Since the discovery of the plant-specific NAC domain-type VASCULAR-RELATED NAC-DOMAIN (VND) transcription factors, which function as master switches of xylem vessel cell differentiation in Arabidopsis, much has been learned about the transcriptional regulatory network of xylem vessel cell differentiation. However, little is known about proteome dynamics during xylem vessel cell differentiation. Here, we performed two-dimensional electrophoresis-based proteomic analysis of xylem vessel cell differentiation using a transgenic tobacco BY-2 cell line carrying the VND7-inducible system (BY-2/35S::VND7-VP16-GR), in which synchronous trans-differentiation into xylem vessel cells can be induced by the application of a glucocorticoid. Of the 47 spots revealed by gel electrophoresis, we successfully identified 40 proteins. Seventeen proteins, including several well-characterized proteins such as a cysteine protease and serine carboxypeptidase (involved in programmed cell death), were upregulated after 24 h of induction. However, previous transcriptomic analysis showed that only eight of these proteins are upregulated at the transcriptional level during xylem vessel cell differentiation in BY-2/35S::VND7-VP16-GR cells. These findings suggest that post-transcriptional regulation strongly affects proteomic dynamics during xylem vessel cell differentiation.

KEYWORDS

post-transcriptional regulation, proteome, two-dimensional electrophoresis, VND7, xylem vessel cell differentiation

Title

Proteomic analysis of xylem vessel cell differentiation in VND7-inducible tobacco BY-2 cells by two-dimensional gel electrophoresis

Author

Masahiro Noguchi,1 Masayuki Fujiwara,1,a Ryosuke Sano,1 Yoshimi Nakano,1,b Yoichiro Fukao,2 Misato Ohtani,1,3,* and Taku Demura1,3,*

Publish date

2018 Mar 28.