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Subject: at carbon 22 gen. Какой тут должен быть предлог?Campesterol and sitosterol are distinguished from each other by the presence of a methyl group for the former and an ethyl group for the latter at carbon 24. Stigmasterol is characterized by the presence of unsaturation at carbon 22. |
| у (24-го атома углерода) |
| Стигмастерин отличается наличием ненасыщенной связи у 22-го атома углерода. |
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