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119366-72-2

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119366-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119366-72-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,3,6 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 119366-72:
(8*1)+(7*1)+(6*9)+(5*3)+(4*6)+(3*6)+(2*7)+(1*2)=142
142 % 10 = 2
So 119366-72-2 is a valid CAS Registry Number.

119366-72-2SDS

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 8-methyloxocan-2-one

1.2 Other means of identification

Product number -
Other names 2-Oxocanone,8-methyl

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:119366-72-2 SDS

119366-72-2Relevant articles and documents

Switching from S- to R-selectivity in the Candida antarctica lipase B-catalyzed ring-opening of ω-methylated lactones: Tuning polymerizations by ring size

Van Buijtenen, Jeroen,Van As, Bart A. C.,Verbruggen, Marloes,Roumen, Luc,Vekemans, Jef A. J. M.,Pieterse, Koen,Hilbers, Peter A. J.,Hulshof, Lumbertus A.,Palmans, Anja R. A.,Meijer

, p. 7393 - 7398 (2008/02/08)

Novozym 435-catalyzed ring-opening of a range of ω-methylated lactones demonstrates fascinating differences in rate of reaction and enantioselectivity. A switch from S- to R-selectivity was observed upon going from small (ring sizes ≤7) to large lactones (ring sizes ≥8). This was attributed to the transition from a cisoid to a transoid conformational preference of the ester bond on going from small to large lactones. The S-selectivity of the ring-opening of the small, cisoid lactones was low to moderate, while the R-selectivity of the ring-opening of the large transoid lactones was surprisingly high. The S-selectivity of the ring-opening of the small, cisoid lactones combined with the established R-selectivity of the transesterification of (aliphatic) secondary alcohols prevented polymerization from taking place. Ring-opening of the large, transoid lactones was R-selective with high enantioselectivity. As a result, these lactones could be polymerized, without exception, by straightforward kinetic resolution polymerization, yielding the enantiopure R-polyester with excellent enantiomeric excess (>99%).

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