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An ester of a carboxylic acid.R stands for any group (typically hydrogen or organyl) and R ′ stands for any organyl group.. In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (R ′). [1]
An ester of carboxylic acid.R stands for any group (organic or inorganic) and R′ stands for organyl group.. In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (−R).
Esther (/ ˈ ɛ s t ər /; Hebrew: אֶסְתֵּר ʾEstēr), originally Hadassah, is the eponymous heroine of the Book of Esther in the Hebrew Bible.According to the biblical narrative, which is set in the Achaemenid Empire, the Persian king Ahasuerus falls in love with Esther and marries her. [1]
Hantzsch ester refers to an organic compound with the formula HN(MeC=C(CO 2 Et)) 2 CH 2 where Me = methyl (CH 3) and Et = ethyl (C 2 H 5). It is a light yellow solid. The compound is a 1,4-dihydropyridine. It is named after Arthur Rudolf Hantzsch who described its synthesis in 1881. The compound is a hydride donor, e.g., for reduction of imines ...
The Book of Esther (Hebrew: מְגִלַּת אֶסְתֵּר, romanized: Megillat Ester; Greek: Ἐσθήρ; Latin: Liber Esther), also known in Hebrew as "the Scroll" ("the Megillah"), is a book in the third section (Ketuvim, כְּתוּבִים "Writings") of the Hebrew Bible.
An ester is a functional group in organic chemistry; specifically a chemical compound derived from an acid in which at least one hydroxyl group is replaced by alkoxy group. Ester may also refer to: Food additives and chemistry
Esther (Hebrew: אֶסְתֵּר) is a female given name known from the Jewish queen Esther, eponymous heroine of the Book of Esther.. According to the Hebrew Bible, queen Esther was born with the name הֲדַסָּה Hadassah ("Myrtle").
Beclometasone dipropionate, an example of a widely used corticosteroid ester. Note the propionate groups at the C17α and C21α positions (top right corner). This is a list of corticosteroid esters, including esters of steroidal glucocorticoids and mineralocorticoids. [1] [2] [3]