Structure
ChemicalBook > CAS DataBase List > Isosilybin

Isosilybin

Structure
Product Name
Isosilybin
CAS No.
72581-71-6
Chemical Name
Isosilybin
Synonyms
Q-100795;Isosilybin;Isosilybinin;ISOSILIBININ;indissolubly;Isosilybin,ISB;ISOSILYBIN hplc;Diosmin Impurity 24;Isosilybin USP/EP/BP;Isosilybin(Mixture A&B)
CBNumber
CB5359479
Molecular Formula
C25H22O10
Formula Weight
482.44
MOL File
72581-71-6.mol
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Isosilybin Property

Boiling point:
793.0±60.0 °C(Predicted)
Density 
1.527±0.06 g/cm3(Predicted)
storage temp. 
Store at -20° C
solubility 
DMF: 20 mg/ml; DMF:PBS (pH 7.2) (1:9): 0.5 mg/ml; DMSO: 10 mg/ml; Ethanol: 0.1 mg/ml
pka
7.39±0.60(Predicted)
form 
Solid
color 
White-light yellow
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHL89231
Product name
Isosilybin (A + B mixture)
Purity
phyproof? Reference Substance
Packaging
10MG
Price
$732
Updated
2024/03/01
Cayman Chemical
Product number
24913
Product name
Isosilybin
Purity
≥95%
Packaging
1mg
Price
$242
Updated
2024/03/01
Cayman Chemical
Product number
24913
Product name
Isosilybin
Purity
≥95%
Packaging
5mg
Price
$1087
Updated
2024/03/01
Cayman Chemical
Product number
24913
Product name
Isosilybin
Purity
≥95%
Packaging
10mg
Price
$2052
Updated
2024/03/01
Usbiological
Product number
280565
Product name
Isosilybin
Packaging
5mg
Price
$595
Updated
2021/12/16
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Isosilybin Chemical Properties,Usage,Production

Structure

Only silybins and isosilybins contain the 1,4-dioxane ring system in their structure during Silymarin’s primary constituents. Silybin and isosilybin have the same trans conformation of C-2, C-3, C-7′ and C-8′. Silybin is considered the major and most active component of silymarin.

Description

Isosilybin is a flavanolignan found in the extract of S. marianum fruits with antioxidant and anticancer activities. It inhibits lipid peroxidation in rat liver microsomes (IC50 = 32 μM) and reduces ADP/Fe3+-induced malondialdehyde (MDA) production and lactate dehydrogenase (LDH) release in rat hepatocytes. Isosilybin inhibits the production of reactive oxygen species (ROS), MDA and LDH release, and reduction in total antioxidant capacity induced by amyloid-β (25-35) (Aβ25-35) in HT-22 hippocampal cells. It also increases protein and mRNA expression of heme oxygenase-1 (HO-1), glutathione S-transferase (GST), and the aldo-keto reductases (AKCR) 1C1 and AKCR1C2 in HT-22 cells. In vivo, isosilybin (50 and 100 mg/kg) reduces tumor volume and increases tumor cell apoptosis in a DU145 prostate cancer mouse xenograft model. It also reduces expression of the tumor angiogenesis markers CD31, nestin, VEGF, VEGFR1, VEGFR2, phospho-Akt, and HIF-1α in tumor tissue without reducing blood vessel count in non-cancerous liver, lung, and kidney tissue in DU145 tumor-bearing mice.

Uses

Isosilybin is useful in the treatment of liver disease

Definition

The flavonolignan isosilybin is one of the components of the flavonoid complex extracted from the seeds of Silybum marianum (milk thistle), designated silymarin. Besides isosilybin, silymarin contains other flavonoids (congeners), such as silybin, 2,3-dehydrosilybin, silydianin, silychristin, isosilychristin, and taxifolin and ca. 20–30% is an undefined polymeric phenolic fraction. However, several recent studies have demonstrated that isosilybin is probably the most potent anticancer agent in silymarin. Isosilybin was shown to possess in vivo anti-proliferative, anti-angiogenic, pro-apoptotic, and cell-cycle modulatory properties. Moreover, isosilybin and especially isosilybin B inhibited the growth of advanced human prostate cancer cells in vivo without any toxic effects[1].

Definition

ChEBI: A flavonolignan isolated from Silybum marianum.

References

[1] Radek Ga?ák . “Preparative method for isosilybin isolation based on enzymatic kinetic resolution of silymarin mixture.” Process Biochemistry 48 1 (2013): Pages 184-189.

Isosilybin Preparation Products And Raw materials

Raw materials

Preparation Products

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Isosilybin Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Chembest Research Laboratories Limited
Tel
+86-21-20908456
Fax
021-58180499
Email
sales@BioChemBest.com
Country
China
ProdList
6005
Advantage
61
Chemsky(shanghai)International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32321
Advantage
50
ShangHai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847 13636370518
Fax
021-55068248
Email
shyysw007@163.com
Country
China
ProdList
4940
Advantage
60
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Chengdu Biopurify Phytochemicals Ltd.
Tel
+86-028-82633397 18982077548
Fax
+86-28-82633165
Email
cwb1@biopurify.cn
Country
China
ProdList
2376
Advantage
60
Chengdu Climax Biotech Co., Ltd.
Tel
028-83311324 1278112614
Fax
028-83311324
Email
climaxbiotech@gmail.com
Country
China
ProdList
925
Advantage
58
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12335
Advantage
58
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
Shanghai Ruji Biology Technology Co., Ltd.
Tel
+86-21-65211385-8001 36031160
Fax
+86-21-65211385-8004
Email
sales@shruji.com
Country
China
ProdList
3224
Advantage
55
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View Lastest Price from Isosilybin manufacturers

Shanghai Standard Technology Co., Ltd.
Product
Isosilybin 72581-71-6
Price
US $0.00/mg
Min. Order
20mg
Purity
≥98%(HPLC)
Supply Ability
100 g
Release date
2020-08-12
Zhuozhou Wenxi import and Export Co., Ltd
Product
Isosilybin 72581-71-6
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27
Career Henan Chemical Co
Product
Isosilybin 72581-71-6
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
200kg
Release date
2019-12-31

72581-71-6, IsosilybinRelated Search:


  • ISOSILIBININ
  • ISOSILYBIN(PRIMARY STANDARD)
  • Isosilybinin
  • Isosilybin (Isosilybinin)
  • (2R,3R)-2-[2,3-Dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one
  • ISOSILYBIN hplc
  • Isosilybin (A+B) mixture
  • -(2,3-Dihydro-2-(4-hydroxy-3-Methoxyphenyl)-3-(hydroxyMethyl)-1,4-benzodioxin-6-yl)-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one
  • 2-(2,3-Dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl)-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one
  • Isosilybin
  • 4H-1-Benzopyran-4-one,2-[2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-,(2R,3R)-
  • Q-100795
  • Isosilybin (Mixture of Diastereomers)
  • Isosilybin,ISB
  • Isosilybin USP/EP/BP
  • indissolubly
  • Isosilybin(Mixture A&B)
  • Diosmin Impurity 24
  • (2R,3R)-3,5,7-Trihydroxy-2-(2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)chroman-4-one
  • 72581-71-6
  • chemical reagent
  • pharmaceutical intermediate
  • phytochemical
  • reference standards from Chinese medicinal herbs (TCM).
  • standardized herbal extract
  • Miscellaneous Natural Products
  • Intermediates & Fine Chemicals
  • Pharmaceuticals