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ChemicalBook >> CAS DataBase List >> (2R,3R)-3,5,7-Trihydroxy-2-[(2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone

(2R,3R)-3,5,7-Trihydroxy-2-[(2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone

(2R,3R)-3,5,7-Trihydroxy-2-[(2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone price.
  • $100 - $964
  • Product name: (2R,3R)-3,5,7-Trihydroxy-2-[(2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone
  • CAS: 142796-22-3
  • MF: C25H22O10
  • MW: 482.44
  • EINECS:
  • MDL Number:MFCD18783097
  • Synonyms:(2R,3R)-3,5,7-Trihydroxy-2-[(2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone;Isosilybin B;4H-1-Benzopyran-4-one, 2-[(2S,3S)-2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-, (2R,3R)-;Isosilybin B，ISB-B;Isosilybin B/(-)-Isosilybin B,Silybin a2;Isosilybin BQ: What is Isosilybin B Q: What is the CAS Number of Isosilybin B;Isosilybin B-RM;Silybin Impurity 4
10 prices
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Brand
  • Arctom
  • AvaChem
  • ChemScene
  • Sigma-Aldrich
  • TRC
Package
  • 1mg
  • 5mg
  • 10mg
  • 20mg
  • ManufacturerArctom
  • Product numberCFN91071
  • Product descriptionIsosilybin B ≥98%
  • Packaging5mg
  • Price$268
  • Updated2021-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number4275
  • Product descriptionIsosilybin B
  • Packaging1mg
  • Price$119
  • Updated2021-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number4275
  • Product descriptionIsosilybin B
  • Packaging5mg
  • Price$290
  • Updated2021-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number4275
  • Product descriptionIsosilybin B
  • Packaging10mg
  • Price$490
  • Updated2021-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number4275
  • Product descriptionIsosilybin B
  • Packaging20mg
  • Price$690
  • Updated2021-12-16
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0101838
  • Product descriptionIsosilybin B 99.32%
  • Packaging1mg
  • Price$100
  • Updated2021-12-16
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0101838
  • Product descriptionIsosilybin B 99.32%
  • Packaging5mg
  • Price$250
  • Updated2021-12-16
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number95684
  • Product descriptionIsosilybin B analytical standard
  • Packaging5mg
  • Price$964
  • Updated2022-05-15
  • Buy
  • ManufacturerTRC
  • Product numberI901003
  • Product descriptionIsosilybin B
  • Packaging1mg
  • Price$115
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberI901003
  • Product descriptionIsosilybin B
  • Packaging5mg
  • Price$485
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Arctom CFN91071 Isosilybin B ≥98% 5mg $268 2021-12-16 Buy
AvaChem 4275 Isosilybin B 1mg $119 2021-12-16 Buy
AvaChem 4275 Isosilybin B 5mg $290 2021-12-16 Buy
AvaChem 4275 Isosilybin B 10mg $490 2021-12-16 Buy
AvaChem 4275 Isosilybin B 20mg $690 2021-12-16 Buy
ChemScene CS-0101838 Isosilybin B 99.32% 1mg $100 2021-12-16 Buy
ChemScene CS-0101838 Isosilybin B 99.32% 5mg $250 2021-12-16 Buy
Sigma-Aldrich 95684 Isosilybin B analytical standard 5mg $964 2022-05-15 Buy
TRC I901003 Isosilybin B 1mg $115 2021-12-16 Buy
TRC I901003 Isosilybin B 5mg $485 2021-12-16 Buy

Properties

Melting point :194-196 °C(Solv: methanol (67-56-1))
Boiling point :793.0±60.0 °C(Predicted)
Density :1.527±0.06 g/cm3(Predicted)
storage temp. :2-8°C
solubility :Soluble in DMSO
form :Solid
pka :7.39±0.60(Predicted)
color :White to off-white

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning GHS hazard pictograms P264, P270, P301+P312, P330, P501
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P501 Dispose of contents/container to..…

Description

Isosilybin B is one of the flavonolignans extracted from the seeds of milk thistle. Isosilybin B was the most consistently potent suppressor of cell growth. Isosilybin A (I901002) and isosilybin B were also the most effective suppressors of prostate-?specific antigen secretion by androgen-?dependent LNCaP cells.

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