Crossword-Solution: PYRIDINE
Dictionary
| Word | Word Type | Definition |
|---|---|---|
| Pyridine | n. | A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine. |
We have 4 clues for the answer “PYRIDINE”
| Clue | Answers |
|---|---|
| METHYLATED spirit, constituent of | 1 answer |
| MINERALISED methylated spirit, constituent of | 1 answer |
| SULPHAPYRIDINE molecule | 1 answer |
| colourless hygroscopic liquid with a characteristic odour | 1 answer |
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Poet’s word, with inverted comma, for the end of the day
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E
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E
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N
Hint 1 meaning
The old plural of Eye.
Hint 2 anagram
NEE
Hint 3 another clue
AND STILL ___
30 +1
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Sentences with PYRIDINE (5)
This pyridine to which reference has just been made has lately been brought forward as a remedy for asthma.
Hydrolysis of digallic acid yields gallic acid; oxidation, on the other hand, ellagic acid and luteic acid (Luteo Säure), which can be separated by shaking with pyridine.
LUTEIC ACID (Luteo Saure, pentoxybiphenylmethylolide carboxylic acid),C_14H_8O_9, occurs, in addition to ellagic acid, in myrabolams-- [Footnote: _Ber_., 1909, 42, 353.] ----CO.O---- ^ ---------- ^ OH | | | | HO V OH HOOC V OH OH OH It is obtained by extracting myrabolams for one hour and a half, under reflux condenser, with pyridine, filtering and adding twice the volume of water to the filtrate and boiling till complete solution is obtained.
After about thirty hours a reddish powder deposits, from which ellagic acid may be extracted with pyridine; the mother-liquor on being concentrated yields luteic acid.
Fischer and Freudenberg obtained a beautifully crystalline form in the following way: carbethoxyhydroxy-benzoyl chloride was coupled with _p_-hydroxybenzoyl-_p_-hydroxybenzoic acid in alkaline solution, the compound dissolved in a mixture of pyridine and acetone, and ammonia added for the purpose of removing the carbethoxy group.