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7611-34-9

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7611-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7611-34-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,1 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7611-34:
(6*7)+(5*6)+(4*1)+(3*1)+(2*3)+(1*4)=89
89 % 10 = 9
So 7611-34-9 is a valid CAS Registry Number.

7611-34-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name xylerythrin

1.2 Other means of identification

Product number -
Other names 5-Hydroxy-3-(4-hydroxy-phenyl)-4,7-diphenyl-benzofuran-2,6-dione

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:7611-34-9 SDS

7611-34-9Downstream Products

7611-34-9Relevant articles and documents

Synthesis of Grevillins, Novel Pyrandione Pigments of Fungi. Biogenetic Interrelationships between Grevillins, Pulvinic Acids, Terphenylquinones and Xylerythrins

Pattenden, Gerald,Pegg, Neil A.,Kenyon, Ronald W.

, p. 2363 - 2372 (2007/10/02)

A synthesis of the grevillin group of pyrandione pigments, e.g. 3, 23 and 24 present in fungi is described.The synthesis, which is based on a biogenetic model, uses bis-benzylacyloins 9 and their corresponding oxalate derivatives as key intermediates (Scheme 3).Treatment of the grevillins 25a-c with sodium ethoxide in ethanol effects their quantitative isomerisation into the corresponding terphenylquinone pigments 4a-c.Perkin-type condensations between the terphenylquinones 4 and arylacetic acids in the presence of sodium acetate-acetic anhydride then produces the xylerythrin pigments 29a-e, whereas rearrangements of 4 in the presence of dimethyl sulphoxide leads to pulvinic acid derivative, e.g. 31, 32 and 5.These synthetic studies interrelate the biosynthetic origins of the pigment types 3, 4, 5 and 8 together with the related pulvinones 6 and furanone 7 fungal pigments.

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