DL-Methionine 99.0-101.0% Ph. Eur., NF
Ratings:
(No Reviews)
Total Ratings: 0
Avg. Ratings: 0.0 out of 5
Synonyms:
Methionine racematic
, (±)-2-Amino-4-(methylthio)butyric acid
, (±)-2-Amino-4-(methylthio)butanoic acid
, (±)-Methionine
, 2-Amino-4-(methylthio)butanoic acid
, H-DL-Met-OH
, Methioninum racemicum
16236.366EA
637
GBP
16236.366
16236.297
DL-Methionine 99.0-101.0% Ph. Eur., NF
DL-Methionine
Appearance: Almost white, crystalline powder or small flakes.
Caution: Not for use as Active Pharmaceutical Ingredient (API)
Formula:
C₅H₁₁NO₂S MW: 149.21 g/mol Melting Pt: ∼136 °C Density: 1.34 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00063096 CAS Number: 59-51-8 EINECS: 200-432-1 Merck Index: 13,06004 |
Specification Test Results
Appearance | Conforms (see CoA/CoS) |
Heavy metals (as Pb) | Max. 5 ppm |
Residual solvents (Ph.Eur./ICH) | Unlikely by manuf.process |
Residues of metal catalysts or reagents | Unlikely by manuf.process |
As (Arsenic) | Max. 2 ppm |
Cd (Cadmium) | Max. 1 ppm |
Co (Cobalt) | Max. 1 ppm |
Hg (Mercury) | Max. 3 ppm |
Ni (Nickel) | Max. 1 ppm |
Pb (Lead) | Max. 2 ppm |
V (Vanadium) | Max. 2 ppm |
Conforms to Ph.Eur./NF | Passes test |
Ph.Eur. specifications: | |
Assay (calculated on dried) [Ph.Eur.] | 99.0 --> 101.0 % |
Identification A | Passes test Ph.Eur. |
Identification C [Ph.Eur.] | -0.05 --> 0.05 ° |
Appearance of solution | Passes test Ph.Eur. |
pH (2 %) [Ph.Eur.] | 5.4 --> 6.1 |
Related substances [Ph.Eur.] | Max. 0.2 % |
Cl (Chloride) [Ph.Eur.] | Max. 200 ppm |
SO4 (Sulphate) [Ph.Eur.] | Max. 200 ppm |
Loss on drying (105°C) [Ph.Eur.] | Max. 0.5 % |
Sulphated ash [Ph.Eur.] | Max. 0.1 % |
NF specifications: | |
Assay (calculated on dried basis) [NF] | 99.0 --> 101.0 % |
Identification A | Passes test NF |
Identification B | Passes test NF |
Identification C [NF] | -0.05 --> 0.05 ° |
Identification D | Passes test NF |
Residue on ignition [NF] | Max. 0.1 % |
Cl (Chloride) [NF] | Max. 200 ppm |
SO4 (Sulphate) [NF] | Max. 200 ppm |
Limit of iron [NF] | Max. 10 ppm |
Limit of ammonium [NF] | Max. 200 ppm |
Related substances [NF] | Max. 0.2 % |
pH (25°C; 20 mg/ml) [NF] | 5.4 --> 6.1 |
Loss on drying (105°C; 3 h) [NF] | Max. 0.5 % |
T (430 nm) (10 %; HCl 2 N) [NF] | Min. 98 % |
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