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1220986-69-5

1220986-69-5

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1220986-69-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1220986-69-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,9,8 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1220986-69:
(9*1)+(8*2)+(7*2)+(6*0)+(5*9)+(4*8)+(3*6)+(2*6)+(1*9)=155
155 % 10 = 5
So 1220986-69-5 is a valid CAS Registry Number.

1220986-69-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 23-O-acetylsilybin A

1.2 Other means of identification

Product number -
Other names 23-O-acetylsilybin

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1220986-69-5 SDS

1220986-69-5Downstream Products

1220986-69-5Relevant articles and documents

Cis-trans isomerization of silybins A and B

Novotna, Michaela,Gazak, Radek,Biedermann, David,Di Meo, Florent,Marhol, Petr,Kuzma, Marek,Bednarova, Lucie,Fuksova, Katerina,Trouillas, Patrick,Kren, Vladimir

, p. 1047 - 1063 (2014/06/09)

Methods were developed and optimized for the preparation of the 2,3-cis- and the 10,11-cis-isomers of silybin by the Lewis acid catalyzed (BF 3-OEt2) isomerization of silybins A (1a) and B (1b) (trans-isomers). The absolute configuration of all optically pure compounds was determined by using NMR and comparing their electronic circular dichroism data with model compounds of known absolute configurations. Mechanisms for cis - trans-isomerization of silybin are proposed and supported by quantum mechanical calculations.

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