L-треонин
L-треонин атрибут
| Температура плавления: |
256 °C (dec.) (lit.) |
| Температура кипения: |
222.38°C (rough estimate) |
| альфа: |
-28.4 º (c=6, H2O) |
| плотность: |
1.3126 (rough estimate) |
| FEMA: |
4710 | L-THREONINE |
| показатель преломления: |
-28 ° (C=6, H2O) |
| температура хранения: |
2-8°C |
| растворимость: |
H2O: 50 мг/мл |
| форма: |
пудра |
| пка: |
2.09(at 25℃) |
| цвет: |
Желтый |
| РН: |
5-6 (100g/l, H2O, 20℃) |
| Запах: |
ADM L-Threonine is a high quality product specifically designed for the feed industry. Produced from advanced technology, ADM L-Threonine is composed of 100% isomerically pure L-Threonine, which translates into 100% bioavailability for swine, poultry, and other animals.mild savory |
| Odor Type: |
savory |
| оптическая активность: |
[α]20/D 28.5±0.5°, c = 5% in H2O |
| Растворимость в воде: |
90 г/л (20°С) |
| Номер JECFA: |
2119 |
| Мерк: |
14,9380 |
| БРН: |
1721646 |
| Стабильность:: |
Стабильный. Несовместим с сильными окислителями. |
| ИнЧИКей: |
AYFVYJQAPQTCCC-GBXIJSLDSA-N |
| LogP: |
-2.94 |
| Вещества, добавляемые в пищу (ранее EAFUS): |
L-THREONINE |
| FDA 21 CFR: |
172.320 |
| Справочник по базе данных CAS: |
72-19-5(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG: |
1 |
| FDA UNII: |
2ZD004190S |
| Справочник по химии NIST: |
Threonine(72-19-5) |
| Система регистрации веществ EPA: |
L-Threonine (72-19-5) |
L-треонин химические свойства, назначение, производство
Химические свойства
A white or almost white, crystalline powder or colourless crystals.
Использование
L-Threonine is used to alleviate anxiety and mild depression. It is an important component of many proteins such as tooth enamel, collagen, and elastin. It is an important amino acid in the nervous system and plays a vital role in porphyrin and fat metabolism. It is useful in intestinal disorders and indigestion. It is also used as a prodrug to reliably elevate brain glycine levels.
Определение
ChEBI: An optically active form of threonine having L-configuration.
Профиль безопасности
Moderately toxic by
intraperitoneal route. When heated to
decomposition it emits toxic fumes of NOx.
Методы очистки
Likely impurities are allo-threonine and glycine. Crystallise L-threonine from H2O by adding 4volumes of EtOH. Dry and store it in a desiccator. It also crystallises from 80% EtOH to give hexagonal plates m 262-263o(dec). It sublimes at 200-226o/0.3mm with 99.6% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Elliot J Chem Soc 62 1950, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 1 pp 176-183, Vol 3 pp 2238-2257 1961, Beilstein 4 IV 3171.]
L-треонин препаратная продукция и сырье
сырьё
препарат
L-треонин поставщик
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72-19-5(L-треонин)подобный поиск: