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Cyclooctanone, 2-methylene-, also known as 2-methylenecyclooctanone, is an organic compound with the molecular formula C9H14O. It is a cyclic ketone with a double bond at the 2nd carbon position, forming a methylene group. Cyclooctanone, 2-methylene- is characterized by its unique structure, which consists of an eight-membered carbon ring with a carbonyl group at one end and a methylene group at the other. Cyclooctanone, 2-methylene-, is an important intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals due to its reactive nature and potential for further functionalization. It is typically synthesized through various methods, including the reaction of cyclooctanol with a suitable oxidizing agent or the condensation of smaller molecules. The compound is sensitive to air and moisture, and it is usually stored under an inert atmosphere to prevent unwanted side reactions.

3045-71-4

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3045-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3045-71-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,4 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3045-71:
(6*3)+(5*0)+(4*4)+(3*5)+(2*7)+(1*1)=64
64 % 10 = 4
So 3045-71-4 is a valid CAS Registry Number.

3045-71-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-methylidenecyclooctan-1-one

1.2 Other means of identification

Product number -
Other names 2-methylene-cyclooctan-1-one

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:3045-71-4 SDS

3045-71-4Relevant academic research and scientific papers

A New Fragmentation Reaction of γ-Oxosulfonium Methylides

Watanabe, Yoshihiko,Takeda, Toyonori,Anbo, Keiji,Ueno, Yoshio,Toru, Takeshi

, p. 159 - 162 (2007/10/02)

Reactions of sulfonium methylides attached to a 5- or 6-membered cycloalkanone undergo the ring-fission as a major reaction course to give α-methylene-ω-(phenylthio)carboxylates, whereas sulfonium methylides attached to a larger ring give α-methylenecycloalkanones predominantly.Reactions of the acyclic compounds are also examined.

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