Crossword-Solution: METHYLATION
We have 2 clues for the answer “METHYLATION”
| Clue | Answers |
|---|---|
| CANCER DNA profile method | 1 answer |
| the process of methylating | 1 answer |
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Dermatological complaint
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Hint 1 meaning
An inflammatory disease of the skin, characterized by the
presence of redness and itching, an eruption of small vesicles, and the
discharge of a watery exudation, which often dries up, leaving the skin
covered with crusts; -- called also tetter, milk crust, and salt rheum.
Hint 2 anagram
ECEMZA
Hint 3 another clue
eruption
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Sentences with METHYLATION (5)
Synthetically it may be prepared by the methylation of silver theobromine and silver theophyllin or by boiling heteroxanthine with methyl iodide and potash.
They behave, however, as tautomeric substances, since their alkali salts on methylation give nitrogen ethers, whilst their silver salts yield oxygen ethers: /--> potassium salt --> R·N(CH3)·NO2 nitramine.
The colouring power of the latter will be inferred from the fact, that this quantity would dye 375 square yards of white flannel of a full red colour, and if converted into Hofmann violet by methylation, would give enough colour to dye double this surface of flannel of a deep violet shade.
The methylation of aniline can obviously be carried out by the foregoing process only when beet-sugar residues are available.
Now it was shown by Hofmann in 1871, that if this operation is conducted at a very high temperature, and under very great pressure, the methyl-alcohol residue, _i.e._ the methyl-group, does not replace the amidic hydrogen or the hydrogen of the ammonia residue, but the methylation takes place in another way, resulting in the formation of a higher homologue of the base started with.