DL-Methionine manufacturers and suppliers

DL-Methionine suppliers

Properties

Melting point:: 284 °C (dec.)(lit.)

alpha: -1～+1°(D/20℃)(c=8,HCl)

Boiling point:: 306.9±37.0 °C(Predicted)

Density: 1.34

FEMA: 3301 | D,L-METHIONINE

refractive index: 1.5216 (estimate)

storage temp.: 2-8°C

solubility: 1 M HCl: 0.5 M at 20 °C, clear, colorless

form: Crystals or Crystalline Powder

pka: 2.13(at 25℃)

color: White

Odor: mild sulfurous acidic

Odor Type: acidic

optical activity: [α]/D, c = 5 in 5 M HCl (inactive)

Water Solubility: 2.9 g/100 mL (20 ºC)

Merck: 14,5975

JECFA Number: 1424

BRN: 636185

BCS Class: 1

Stability:: Stable. Incompatible with strong oxidising agents.

InChIKey: FFEARJCKVFRZRR-UHFFFAOYSA-N

LogP: 0.37

Safety Information

Hazard Codes: Xi

Risk Statements: 33-36/37/38

Safety Statements: 24/25-36-26

WGK Germany: 2

RTECS: PD0457000

F: 10-23

TSCA: Yes

HS Code: 29304090

Use

DL-Methionine is the second amino acid that is almost exclusively manufactured by chemical synthesis. The process used today was originally developed by Werner Schwarze at Degussa in the 1940s, and has been continually improved and refined since. Today DL-methionine is manufactured in several plants, each with a capacity of more than 100,000 tonnes. To operate the process on an industrial scale also requires back-integration into the key hazardous raw materials acrolein, methyl mercaptan, and hydrogen cyanide. After the formation of the hydantoin, the key step is alkaline hydrolysis of the hydantoin, to produce methionine directly in up to 95 % yield based on acrolein.

You can find DL-Methionine suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.