999-56-4 Usage
Uses
Used in Pharmaceutical Industry:
2-Propynoic acid, 2-hydroxyethyl ester is used as a building block for the synthesis of various pharmaceuticals. Its ester group allows for the creation of a wide range of drug molecules, contributing to the development of new medications and therapies.
Used in Pesticide Industry:
In the pesticide industry, 2-Propynoic acid, 2-hydroxyethyl ester serves as a key intermediate in the production of various agrochemicals. Its versatility in organic synthesis enables the development of effective and targeted pest control solutions.
Used in Specialty Chemicals Production:
2-Propynoic acid, 2-hydroxyethyl ester is utilized as an intermediate for the synthesis of specialty chemicals, which find applications in various industries such as coatings, adhesives, and textiles. Its unique properties allow for the creation of customized chemical products tailored to specific needs.
Used as a Solvent for Dyes:
In the dye industry, 2-Propynoic acid, 2-hydroxyethyl ester is employed as a solvent for various dyes. Its ability to dissolve a wide range of dyes makes it a valuable component in the production of colored products.
Used in Plastics and Resins Manufacturing:
2-Propynoic acid, 2-hydroxyethyl ester is also used in the manufacturing process of plastics and resins. Its incorporation into these materials can enhance their properties, such as flexibility, durability, and resistance to various environmental factors.
Check Digit Verification of cas no
The CAS Registry Mumber 999-56-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 999-56:
(5*9)+(4*9)+(3*9)+(2*5)+(1*6)=124
124 % 10 = 4
So 999-56-4 is a valid CAS Registry Number.
999-56-4Relevant academic research and scientific papers
Palladium-Catalyzed Regio- and Stereoselective Coupling-Addition of Propiolates with Arylsulfonyl Hydrazides: A Pattern for Difunctionalization of Alkynes
Liu, Lixin,Sun, Kang,Su, Lebin,Dong, Jianyu,Cheng, Lei,Zhu, Xiaodong,Au, Chak-Tong,Zhou, Yongbo,Yin, Shuang-Feng
supporting information, p. 4023 - 4027 (2018/07/15)
A new pattern for difunctionalization of alkynes via a palladium-catalyzed regio- and stereoselective coupling-addition of propiolates with arylsulfonyl hydrazides is disclosed. The approach enables the synthesis of various highly functionalized (E)-vinylsulfones in satisfactory yields. Arylsulfonyl hydrazides act as both aryl and sulfonyl sources via selective cleavage of Ar(C)-S and S-N bonds, which are simultaneously incorporated onto the terminal carbon atom of an alkyne molecule.
A mild and efficient Si (111) surface modification via hydrosilylation of activated alkynes
Liu, Yang,Yamazaki, Shoko,Yamabe, Shinichi,Nakato, Yoshihiro
, p. 4906 - 4913 (2007/10/03)
A new Si surface modification with organic groups via hydrosilylation at room temperature is reported. A hydrogen-terminated Si (111) surface was reacted with activated alkynes such as propiolate esters, propiolic acid, but-3-yne-2-one, propiolonitrile and phenylacetylene at room temperature for 24-40 h to give modified surfaces. The coverage ratio was estimated to be 31-56% by XPS analysis. This surface modification method is mild, highly efficient and procedurally simple. The novel surfaces modified with various organic functional groups are expected to have interesting utilities. The Royal Society of Chemistry 2005.
