SICHUAN TONGSHENG AMINO ACID CO.,LTD
Reference Standard
Product Name: H-DL-Met-OH
CAS#: 59-51-8
Synonyms: DL-Methionine
Molecular Formula: C5H11NO2S
Molecular Weight: 149.2
Specifications: (Reference Standard AJI92)
Item |
Standard |
Appearance |
White, crystalline platelets or powder |
State of solution (Transmittance) |
Clear and colorless not less than 98.0% |
Chloride (Cl) |
Not more than 0.020% |
Ammonium(NH4) |
Not more than 0.020% |
Sulfate (SO4) |
Not more than 0.020% |
Iron(Fe) |
Not more than 10ppm |
Heavy metal(Pb) |
Not more than 10ppm |
Arsenic(As2O3) |
Not more than 1ppm |
Other Amino Acids |
Chromatographically Not detectable |
Loss on drying |
Not more than 0.30% |
Residue on ignition(sulfated) |
Not more than 0.10% |
Assay |
99.0% to 101.0% |
pH |
5.6 to 6.1 |
Tele No.:86-838-2274206