L-Methionine CAS NO.63-68-3

Shanghai LONGBANG , Boasts strong competitive advantages by our well-trained chemists with rich professional backgroud. We aim to win the market via quick response and fast delivery, as well as continous development for high-tech medical compounds, bio-medicine, and new pharmaceutical intermediates. 

 

Our quality assurance system is based on GMP. Over the past years, we are engaged in the exporting business, our products have reached far to the USA, Europe, South Asia, Middle East and so on, also has established long term and stable business relationships with our customers.

Product Name:  L-Methionine   

 

CAS#63-68-3

Molecular Formula:   C5H11NO2S

Molecular weight:    149.21

Melting point:       276-279(DEC.)         

Specific rotation:   23.25(C=2, 6N HCL)      

water-soluble:       Soluble 

Standard:            USP AJI FCC

Purity:              98% 99%

 

1.Specification of our 99% L-Methionine

Description                    White crystals crystalline powder

Identification                 Conforms

State Of Solution          ≥98.5%

Specific Rotation         +22.4° ~ +24.7°

pH                                   5.6 ~ 6.1

Chloride(CL)                 ≤0.050%

Sulfate(SO4)                  ≤0.030%

Ammonium(NH4)         ≤0.02%

Heavy Metals(Pb)          ≤15ppm

Iron(Fe)                            ≤30ppm

Arsenic(As2O3)             ≤1ppm

Other Amino Acids         Conforms

Loss On Drying              ≤0.30%

Residue On Ignition       ≤0.10%

Pyrogen                            Conforms

Assay                                98.5~101.0%

 

2.PACKING: 25kg per Drum or Bag

 

3.Usage of this L-Methionine 99%

 

*Methionine is an intermediate in the biosynthesis of cysteine, carnitine, taurine, lecithin, phosphatidylcholine, other phospholipids

*DL-Methionine is sometimes given as a supplement to dogs; it helps keep dogs from damaging grass by reducing the pH of the urine.

*Methionine is allowed as a supplement toganic poultry feed under the US certifiedganic program.

 

4. the Advantage of L-Methionine 99%

- produce under ISO/GMP

- can offer more than 100 kinds:L-Methionine 400mt/year,L-Serine 500mt/year etc.