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1618-12-8

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1618-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1618-12-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,1 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1618-12:
(6*1)+(5*6)+(4*1)+(3*8)+(2*1)+(1*2)=68
68 % 10 = 8
So 1618-12-8 is a valid CAS Registry Number.

1618-12-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-cyclopropylbuta-1,3-dienylcyclopropane

1.2 Other means of identification

Product number -
Other names 1,1-Dicyclopropyl-1,3-butadien

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:1618-12-8 SDS

1618-12-8Relevant articles and documents

Cycloaddition Reaction of Some Representative 1-Cyclopropyl-1,3-butadienes with Tetracyanoethylene and Reaction of the Resultant Vinylcyclobutanes. An Easy Vinylcyclobutane-Cyclohexene Rearrangement

Kataoka, Fumio,Shimizu, Nobujiro,Nishida, Shinya

, p. 711 - 716 (2007/10/02)

In the reaction with TCNE, (Z)-1-cyclopropyl-1,3-butadiene (1b) as well as several 1,1-disubstituted 1,3-butadienes (1c-f) yielded vinylcyclobutane 2 as the major product particularly in a polar solvent, whereas the E isomer 1a gave the cyclohexene 3 exclusively.The resultant vinylcyclobutanes, except for 2f, isomerized easily to 3.The most reactive of all was 2c while 2b was the least reactive.The isomerization of 2c in acetonitrile in the presence of 1a yielded virtually no cross product 3a, supporting the intramolecular nature of the transformation.Since the intermediate was trapped by p-toluenethiol, the rearrangement will most probably be stepwise.The solvent effects and the substituent effects on the rate of the reaction indicate that the ionic mechanism is operating.In contrast, 2f did not rearrange at all, but, especially at elevated temperatures, it split into the two fragments, i.e., methylenemalononitrile and 4f.The lack of effect of solvent polarity on the rate suggests that the fragmentation would be a diradical stepwise process.In the reaction of other vinylcyclobutanes, also, the fragmentation became appreciable at elevated temperatures in solvents of low polarity.The extent of the fragmentation depends upon the substituent(s) at the terminal carbon of the vinyl group.

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