Propanoic acid, also known as initial oleic acid, is a three-carbon carboxylic acid, a short-chain saturated fatty acid, and the chemical formula is CH3CH2COOH. Pure propionic acid is a colorless, corrosive liquid with a pungent odor.

L-Threonine is an essential amino acid, which means that humans must get this amino acid from food because their bodies cannot synthesize it. Foods that contain a lot of protein, such as meat, fish, eggs and dairy products, are good sources of L-threonine.

Name:Tryptophan L-Tryptophan
CAS.NO : 73-22-3
MF: C11H12N2O2
Purity: 99%
Grade: Feed grade
Appearance: White crystaliine powder
Standard packing material:Aluminum foil bag inside, then waterproof bag or carton

Product name:L-Lysine hydrochloride
CAS number:657-27-2
Purity:99%
Appearance:White Powder
Usage:Syntheses Material Intermediates
Place of origin:Shandong,China

Methallyl alcohol :colorless liquid with a sharp pungent odor. Soluble in water and floats on water. Moderately toxic by ingestion and is an irritant to eyes and skin. Used in the chemical process industry.

Propanoic acid is a three-carbon carboxylic acid, a short-chain saturated fatty acid with the chemical formula CH3CH2COOH. pure propanoic acid is a colourless, corrosive liquid with a pungent odour.

-Propanol, also known as isopropanol (English: isopropanol), IUPAC name is propan-2-ol, which is equivalent to 1-methylethanol. It is a colorless, flammable liquid with a strong odor at normal temperature and pressure. It is irritating . The molecular formula is C3H8O. With methyl ethyl ether, 1-propanol (n-propanol) as isomers. Isopropanol is the simplest secondary alcohol and one of the isomers of propanol, with a CAS number of 67-63-0. [1]

Aniline, also known as aminozene, is an organic compound. The chemical formula is C6H7N. It is a colorless oil -shaped liquid. It is heated to 370 ° C to break down, slightly soluble in water, and is easily soluble in organic solvents such as ethanol and ether.
Aniline is one of the most important amine. It is mainly used for manufacturing dyes, drugs, resin, and can also be used as a rubber sulfide promoter. It can also be used as a black dye. Its derivative methyl orange can be used as an indicator for the fixed pH.

Diisononyl phthalate (DINP for short), is a transparent oily liquid with a slight odor. This product is a general-purpose main plasticizer with excellent performance. This product and PVC miscibility is good, even if a large number of use will not precipitate; volatility, mobility, non-toxicity are better than DOP, can give the products good light, heat, aging and electrical insulation properties, the overall performance is better than DOP. Due to the products produced by this product has good water resistance and resistance to extraction, low toxicity, aging resistance, electrical insulation properties, therefore, it has been widely used in the toy film, wires and cables. It is widely used in toy films, wires and cables.