L-tryptophane
L-tryptophane CAS:73-22-3
L-tryptophane Chemical Properties
MF : C11H12N2O2
MW : 204,23
EINECS : 200-795-6
Point de fusion : 289-290 °c (déc.)(lit.)
Alpha : -31,1 º (c=1, h20)
Point d'ébullition : 342,72°c (estimation approximative)
Densité:1.34
Indice de réfraction :-32° (c=1, h2o)
Solubilité : 20 % nh3 : 0,1 g/ml à 20 °c, limpide, incolore
pka:2.46(à 25â„)
PH : 5,5-7,0 (10 g/l, H2O, 20 â„)
activité optique :[α]20/D 31,5±1°, c = 1% dans H2O
Solubilité dans l'eau : 11,4 g/L (25 ºC)
L-tryptophane CAS:73-22-3 Introduction:
L-tryptophane is one of essential amino acids and the fourth limiting amino acid in animal diets, which means it could not be synthesized by the body, in addition, dietary supply through feed materials is usually insufficient.
The deficiency of L-tryptophane was generally characterized as decreased feed intake and efficiency, and slow growth rate. Considering L-tryptophane playing a key role in growth performance and feed efficiency, it is recommended to add L-tryptophane in diet to achieve the optimal amino acid balance and fulfill the digestible tryptophan requirement of animals, especially piglets, sows and poultry etc.It is a fermentation product from natural raw materials as nutritional additives for feedstock. Thanks for the state-of-the-art fermentation technology and high level quality control system, we can offer our tryptophan in high purity above 98.5% and consistent quality for animal feed.
L-tryptophane CAS:73-22-3 Specification:
Élément de test |
Standard |
Résultat |
Apparence |
Poudre cristalline blanche à jaune clair |
conforme |
Essai/% |
98,00 € |
99.10 |
Rotation spécifique |
-29,0°-32,8° |
-29,3° |
Résidus à l'allumage/% |
0,50 € |
0.40 |
Perte au séchage/% |
0,50 € |
0.30 |
Métal lourd (Pb)/% |
‰¤5 |
<5 |
Arsenic(As)/% |
â2 |
conforme |
Mercure(Hg)/% |
0.1 |
conforme |
Cadmium(Cd)/% |
â2 |
conforme |
Salmonelle |
Négatif en 10g |
conforme |
PH |
5,0 ~ 7,0 |
conforme |