Skip to Content
Merck

Key Documents

View All Documentation

Skip To

PHL82570

Isosilybin A

phyproof® Reference Substance

Synonym(s):

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

Sign Into View Organizational & Contract Pricing

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C25H22O10
CAS Number:
142796-21-2
Molecular Weight:
482.44
UNSPSC Code:
41116107
NACRES:
NA.24
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

primary reference standard

product line

phyproof® Reference Substance

Assay

≥95.0% (HPLC)

form

solid

manufacturer/tradename

PhytoLab

SMILES string

COc1cc(ccc1O)[C@H]2Oc3ccc(cc3O[C@@H]2CO)[C@H]4Oc5cc(O)cc(O)c5C(=O)[C@@H]4O

InChI

1S/C25H22O10/c1-32-17-6-11(2-4-14(17)28)24-20(10-26)33-18-7-12(3-5-16(18)34-24)25-23(31)22(30)21-15(29)8-13(27)9-19(21)35-25/h2-9,20,23-29,31H,10H2,1H3/t20-,23+,24-,25-/m1/s1

InChI key

FDQAOULAVFHKBX-HKTJVKLFSA-N

General description

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

Other Notes

This compound is commonly found in plants of the genus: silybum

Legal Information

phyproof is a registered trademark of PhytoLab GmbH & Co. KG

Still not finding the right product?

Explore all of our products under Isosilybin A

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P301 + P312 + P330

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
119604532
109033944

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library