Model No.: X-CAS 14907-27-8
CAS No.:: 14907-27-8
Names:: D-Tryptophan Methyl Ester Hydrochloride
Bp:: 390.6ºC At 760mmHg
Packaging: according to your request
Productivity: 100000kg per month
Place of Origin: Shandong, China (Mainland)
Supply Ability: in stock
Certificate: ISO CE
HS Code: 14907-27-8
Amino acids and their derivatives are a class of compounds that contain both an amino group and a carboxyl group in the molecule. Appears in the body in free or combined state. Free amino acids are distributed in all animal cells and body fluids, and the binding amino acids are mainly the basic components of proteins and peptides.
Natural amino acids as colorless crystalline material, high melting point, most of them above 200 ℃. Usually soluble in water, insoluble in non-polar organic solvents. However, tyrosine and cystine are poorly soluble in water, and proline and carboxy proline are soluble in ethanol and ether. All amino acids are soluble in strong acid and alkali solution.
According to the polar nature of the side chain R groups in the α-amino acids, the 20 common amino acids that make up the protein can be divided into four groups:
① R groups are non-polar amino acids. There are 8 species, 5 species with aliphatic side chains, namely alanine, leucine, isoleucine, valine and proline, two kinds of aromatic amino acids, namely, phenylalanine and tryptophan Acid, a sulfur-containing amino acid, methionine; the solubility of this group of amino acids in water is less than the polar R-based amino acids; proline and the general α-amino acids, which is α-amino acid side-chain substitution A hydrogen atom on the amino acid formed, in fact, is an imino acid.
② R group polar but not charged amino acids. There are seven kinds, namely, R group hydroxyl serine, threonine and tyrosine, R group mercapto cysteine, R group amide group glutamine and asparagine, the other amino acid is glycine ; Glycine molecules without R group, but has a certain polarity, so attributed to this group; this group of amino acids side chains contain non-dissociation of the polar groups, with hydrogen to form hydrogen bonds, more easily soluble in water.
③ R base positively charged amino acids. There are 3 species, namely, lysine, arginine and histidine; carry a positive charge at pH 7.0, also known as basic amino acids.
D-tryptophan methyl ester hydrochloride / H-D-Trp-OMe.HCl
White to off-white powder
Purity: 99% min
Name:D-Tryptophan methyl ester hydrochloride
Synonym:D-Trp ome hcl
White to almost white powder
Not less than 98%
Clarity of solution
D-Trp OMe HCl
Not less than 99%
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