бензалконий хлориді

бензалконий хлориді

C₆H₅CH₂(CH₃)₂NRCl A yellow-white powder soluble in water; used as a fungicide and bactericide; the R is a mixture of alkyls from C₈H₁₇ to C₁₈H₃₇.

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бензалконий

Chemistry; Organic chemistry

C 6 H 5 CH 2 N(CH 3 ) 2 R+ An organic radical in which R may range from C 8 H 17 to C 18 H 37 ; found in surfactants, as the chloride salt.

бутил

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Any of the four variations of the hydrocarbon radical C 4 H 9 : CH 3 CH 2 CH 2 CH 2 _, (CH 3 ) 2 CHCH 2 _, CH 3 CH 2 CHCH 3 _, and (CH 3 ) 3 C_.

гидрокорды қышқыл

Chemistry; Organic chemistry

C 6 H 5 CH 2 CH 2 COOH A compound whose crystals have a floral odor (hyacinth-rose) and melt at 46_C; used in perfumes and flavoring.

3-гидрокситирамин гидробромиді

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(HO) 2 C 6 H 3 CH 2 CH 2 NH 2 _HBr A source of dopamine for the synthesis of catecholamine analogs.

фенетилацетат

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C 6 H 5 CH 2 CH 2 OOCCH 3 A colorless liquid with a peachlike odor and a boiling point of 226_C; soluble in alcohol, ether, and fixed oils; used in perfumes. Also known as ...

абиетин қышқылы

Chemistry; Organic chemistry

C 20 H 30 O 2 A tricyclic, crystalline acid obtained from rosin; used in making esters for plasticizers.

альфин катализаторы

Chemistry; Organic chemistry

A catalyst derived from reaction of an alkali alcoholate with an olefin halide; used to convert olefins (for example, ethylene, propylene, or butylenes) into polyolefin polymers.

бензотиазоль

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C 6 H 4 SCHN A thiazole fused to a benzene ring; can be made by ring closure from o-amino thiophenols and acid chlorides; derivatives are important industrial products.

целлюлозалық

Chemistry; Organic chemistry

Any of the derivatives of cellulose, such as cellulose acetate.

3,5-диаминобензоқышқыл

Chemistry; Organic chemistry

C 7 H 8 N 2 O 2 Monohydrate crystals with a melting point of 228_C; soluble in organic solvents such as alcohol and benzene; used in the detection and determination of nitrites.

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The radical CH 3 CHNH 2 CO_; occurs in, for example, alanyl alanine, a dipeptide.

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Industrie/Domein: Astronomy Category: Galaxy

Рождестволық көпіршік

The giant intergalactic bubble of gas floating in space. It's the remnant of a massive star explosion, or supernova, in the Large Magellanic Cloud ...