rac-(R*)-α-(Acetylamino)-4-hydroxybenzenepropionic acid
N-Acetyl-DL-Tyrosine
CAS: 2901-77-1
Molecular Formula: C11H13NO4
rac-(R*)-α-(Acetylamino)-4-hydroxybenzenepropionic acid - Names and Identifiers
rac-(R*)-α-(Acetylamino)-4-hydroxybenzenepropionic acid - Physico-chemical Properties
| Molecular Formula | C11H13NO4 |
| Molar Mass | 223.23 |
| Density | 1.304±0.06 g/cm3(Predicted) |
| Melting Point | 90 °C |
| Boling Point | 531.3±45.0 °C(Predicted) |
| pKa | 3.15±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Physical and Chemical Properties | Sealed in dry,Room Temperature |
rac-(R*)-α-(Acetylamino)-4-hydroxybenzenepropionic acid - Determination of N-acetyl-L-tyrosine and L-tryptophan in 18 compound amino acid injections
from VIP
Author:
Abstract:
two kinds of amino acids N-acetyl-L-tyrosine and L-tryptophan in 18 kinds of compound amino acid injection were quantitatively studied by HPLC: alltmac C18 column, mobile phase: pH 7.3 phosphate buffer-methanol (90:10), detection wavelength 276nm, flow rate 0.6ml/min, the results showed that the concentration of 14.5~72.7 μg/ml showed a good linear relationship, the correlation coefficient r = 0.9999,RSD = 1.3%, the average recovery rate was 99.88%.
Key words:
high performance liquid chromatography amino acids injection L-tryptophan
DOI:
CNKI:SUN:SHYW.0.1998-03-012
cited:
year:
1998
Last Update：2024-01-02 23:10:35
rac-(R*)-α-(Acetylamino)-4-hydroxybenzenepropionic acid - Synthesis, structure and properties of two pure cobalt (Ⅱ) complexes based on N-acetyl-L-tyrosine
from VIP Journal Professional Edition
Author:
Maying , Song Huihua , Yu Haitao
Abstract:
two pure chiral complexes {[Co(acty)(bpp)) were synthesized by solution method using chiral ligand N-acetyl-L-tyrosine (Hacty) and cobalt salt 2(H2O)2](NO3)· 2H2O}n(1) and {[Co2(acty)2(bpe)3(H2O)3](Cl O4)2 · 4H2O}n(2)(bpp = 1,3-(4-pyridine) propane, bpe = 1,2-(4-pyridine) ethane), and they were elemental analysis (EA), infrared spectroscopy (IR), Ultraviolet Spectroscopy (UV), thermogravimetric (TG), powder X-ray diffraction (PXRD). And X-ray single crystal diffraction determination. Complex 1 belongs to the monoclinic P21 space group, the six coordination of Co (II) ions by the bpp ligand to form a one-dimensional right hand helix chain structure. Complex 2 belongs to the three triclinic P1 space group, the six coordination of the binuclear Co (II) ions by the bpe ligand to form a one-dimensional band chain structure. Under the action of hydrogen bonds, they all form three-dimensional supramolecular structures. The effects of N-containing auxiliary ligands with different configurations on the structure of the complexes are discussed in depth. In addition, circular dichroism (CD) spectra of two chiral complexes were measured.
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Key words:
cobalt complex N-acetyl-L-tyrosine crystal structure pure chiral complex
cited:
year:
2016
Last Update：2023-08-16 22:09:08
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