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20460-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20460-57-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,6 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20460-57:
(7*2)+(6*0)+(5*4)+(4*6)+(3*0)+(2*5)+(1*7)=75
75 % 10 = 5
So 20460-57-5 is a valid CAS Registry Number.

20460-57-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name	(E)-4-methylhept-3-ene-2,6-dione

1.2 Other means of identification

Product number	-
Other names	4-Methyl-3-heptene-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:20460-57-5 SDS

20460-57-5Upstream product

20460-57-5Downstream Products

20460-57-5Relevant articles and documents

Williams

, p. 2733,2734 (1971)

PYRYLIUM-MEDIATED TRANSFORMATION OF NATURAL PRODUCTS. PART 4. REACTIONS OF WATER-SOLUBLE PYRYLIUM SALTS WITH WATER AND WITH AMINES

Katritzky, Alan R.,Leahy, David E.

, p. 867 - 874 (2007/10/02)

Pyrylium cation equilibria and kinetics in aqueous solution have been measured and compared with existing data.Competing reactions of pyrylium cations with amines, water molecules, and hydroxide ions have been elucidated and rationalised.Conditions for maximising yields of pyrylium cations from pyrylium salts and amines in aqueous media have been deduced.

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CAS

20460-57-5