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Phenethylamines, also known as phenethylamines, are a class of organic compounds that include a wide range of psychoactive substances, such as amphetamines, mescaline, and MDMA. They are characterized by a phenyl ring attached to an ethylamine chain. Phenethylamines can have various effects on the human body, depending on their specific structure and chemical properties. Some are stimulants, while others can act as hallucinogens or entactogens. Due to their potential for abuse and their effects on the central nervous system, many phenethylamines are controlled substances in various countries. It is important to note that the term "Phentydrone" does not refer to a specific chemical but is a misspelling or miscommunication; if referring to a specific phenethylamine, additional context or the correct chemical name would be necessary for a precise summary.

634-19-5

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634-19-5 Usage

Chemical Description

THF is tetrahydrofuran, a polar aprotic solvent.

Check Digit Verification of cas no

The CAS Registry Mumber 634-19-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,3 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 634-19:
(5*6)+(4*3)+(3*4)+(2*1)+(1*9)=65
65 % 10 = 5
So 634-19-5 is a valid CAS Registry Number.

634-19-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,2,3,4-Tetrahydro-9H-fluoren-9-one

1.2 Other means of identification

Product number -
Other names Fluoranthene,7,8,9,10-tetrahydro

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:634-19-5 SDS

634-19-5Downstream Products

634-19-5Related news

Investigation of THF (cas 634-19-5) hydrate formation kinetics: Experimental measurements of volume changes07/19/2019

The present study is based on the investigation of hydrate formation and growth of THF through an online and direct method. In fact, the volume rise associated with hydrate formation has been used for kinetics studies. This procedure which is called volumetric method is more precise than the con...detailed

The influence of electric field and peroxide of THF (cas 634-19-5) on the THF (cas 634-19-5) hydrate formation07/15/2019

Natural gas hydrate (NGH) has great potential for exploitation, which is a new, clean and effective energy. THF hydrate has properties similar to methane hydrate. Hence, is widely researched to provide fundamental properties about hydrates. In this study, an experiment about THF hydrate formatio...detailed

634-19-5Relevant academic research and scientific papers

Palladium-catalyzed intramolecular aromatic C-H acylation of 2-arylbenzoyl fluorides

Hayakawa, Kazuki,Ikai, Kana,Ogiwara, Yohei,Sakai, Norio,Sakurai, Yuka

, p. 1882 - 1893 (2021/08/13)

The catalytic intramolecular cyclization of acyl fluorides using a Pd(OAc)2/PCy3 system is described. A wide range of 2-arylbenzoyl fluoride derivatives can be used as fluorenone precursors and the reaction proceeds via an intramolecular coupling between aromatic C-H bonds with acyl C-F bonds. The reaction can be applied to the synthesis of indenofluorenedione derivatives and to the construction of other molecules with fivemembered rings.

Intramolecular Vinylation of Aryl Rings by Vinyl Cations

Fang, Jian,Brewer, Matthias

supporting information, p. 7384 - 7387 (2019/01/03)

A Lewis acid mediated intramolecular electrophilic vinylation of aryl rings by vinyl cations is reported. This reaction takes advantage of β-hydroxy-α-diazo ketones as vinyl cation precursors and provides good yields of tricyclic 1-indenones that contain

Direct carbocyclizations of benzoic acids: Catalyst-controlled synthesis of cyclic ketones and the development of tandem aHH (acyl Heck-Heck) reactions

Miles, Kelsey C.,Le, Chi,Stambuli, James P.

, p. 11336 - 11339 (2014/10/16)

The formation of exo-methylene indanones and indenones from simple ortho-allyl benzoic acid derivatives has been developed. Selective formation of the indanone or indenone products in these reactions is controlled by choice of ancillary ligand. This new process has a low environmental footprint as the products are formed in high yields using low catalyst loadings, while the only stoichiometric chemical waste generated from the reactants in the transformation is acetic acid. The conversion of the active cyclization catalyst into the Hermman-Beller palladacycle was exploited in a one-pot tandem acyl Heck-Heck (aHH) reaction, and utilized in the synthesis of donepezil. Carboxylic acids in aHH: Simple ortho-allyl benzoic acid derivatives have been utilized in an acyl Heck (aH) reaction to selectively form indanones and indenones. The conversion of the active cyclization catalyst into the Hermman-Beller palladacycle was exploited in a one-pot tandem acyl Heck-Heck (aHH) reaction to form two sp 2-sp2 bonds of (E)-trisubstituted olefins.

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