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204588-77-2 Usage

General Description

2,2-Dimethyl-but-3-ynoic acid benzyl ester is a chemical compound with the formula C14H18O2. It is an ester derivative of 2,2-dimethylbut-3-ynoic acid and benzyl alcohol. The compound is commonly used as an intermediate in the synthesis of various pharmaceuticals, pesticides, and other organic compounds. It is a colorless to pale yellow liquid with a slight odor and is soluble in organic solvents such as ethanol, ether, and chloroform. 2,2-Dimethyl-but-3-ynoic acid benzyl ester is also used as a reagent in organic chemical reactions and as a building block for the production of other complex molecules. It should be handled and stored according to proper safety guidelines and regulations.

Check Digit Verification of cas no

The CAS Registry Mumber 204588-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,8 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 204588-77:
142 % 10 = 2
So 204588-77-2 is a valid CAS Registry Number.



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


1.1 GHS Product identifier

Product name benzyl 2,2-dimethylbut-3-ynoate

1.2 Other means of identification

Product number -
Other names benzyl 2,2-dimethyl-3-butynoate

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:204588-77-2 SDS

204588-77-2Relevant articles and documents



Page/Page column 58; 60, (2010/06/11)

Compounds of the present invention and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette ('ABC') transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator ('CFTR'). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.

The design, synthesis, and evaluation of novel conformationally rigid analogues of sialyl Lewis(x)

Murphy, Paul V.,Hubbard, Rod E.,Manallack, David T.,Wills, Ruth E.,Montana, John G.,Taylor, Richard J. K.

, p. 2421 - 2439 (2007/10/03)

The design and synthesis of a series of analogues of sialyl Lewis(x) (1) which incorporate conformationally rigid tetralin and naphthalene ring systems (2-4) has led to novel compounds which have similar potency to 1 as inhibitors of cell adhesion. Copyright (C) 1998 Elsevier Science Ltd.

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