CERTIFICATE OF ANALYSIS
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Product Name:DL-Methionine |
Quantity:1000kg |
Batch No:20220605 |
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Producing date: 2022.06.05 |
Sampling date: 2022.06.05 |
Send out date:2022.06.06 |
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Reference standard: USP36 |
Package: 25kg/bag |
Expiry date:2024.06.04 |
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Item |
Specification |
Result |
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Appearance |
White crystals or crystalline powder |
Conforms |
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Assay,% |
98.5~101.5 |
99.4 |
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Identification |
Infrared absorption |
Conforms |
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Optical rotation |
+22.4°~+24.7° |
+23.4° |
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PH value (10mg/ml in water) |
5.6~6.1 |
5.79 |
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Loss on drying,(100-105℃)% |
≤0.3 |
0.12 |
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Residue on ignition,% |
≤0.4 |
0.08 |
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Sulfate,% |
≤0.03 |
＜0.03 |
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Chloride,% |
≤0.05 |
＜0.05 |
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Iron，% |
≤0.003 |
＜0.003 |
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Heavy metals,% |
≤0.0015 |
＜0.0015 |
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Chromatographic purity,% |
Individual impurity ≤0.5 Total impurities ≤2.0 |
Conforms |
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Organic volatile impurities |
Meets the requirements |
Conforms |
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Arsenic, ppm |
≤1 |
＜1 |
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Conclusion: The goods conforms to USP36 Standard. |
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| Product Name: | (±)-Methionine | Other Name: | Methionine;Methionine,DL-;DL-Methionine;α-Amino-γ-methylmercaptobutyric acid;DL-2-Amino-4-(methylthio)butyric acid;Banthionine;Cynaron;Dyprin;Lobamine;Meonine;Methilanin;Metione;Neston;(±)-Methionine;Racemethionine;Lactet;Pedameth;Urimeth;Amurex;NSC 9241;Meprom M 85;Rhodimet NP 99;Smartamine M;Smartamine;Timet;MetAMINO;MetiPEARL;Acimetion;2-Amino-4-(methylthio)butanoic acid;2-Amino-4-(methylsulfanyl)butanoic acid;2-Azaniumyl-4-methylsulfanylbutanoate;DL-Methionine;1105707-18-3;192948-75-7 |
| CAS No.: | 59-51-8 | Molecular Formula: | C5H11NO2S |
| InChIKeys: | InChIKey=FFEARJCKVFRZRR-UHFFFAOYSA-N | Molecular Weight: | 149.21 |
| Exact Mass: | 149.21 | BRN: | 636185 |
| EC Number: | 200-432-1 | ICSC Number: | 0919 |
| NSC Number: | 522406|118113|45689|22946|9241 | DSSTox ID: | DTXSID9020821 |
| ATC Code: | V – Various | HScode: | 29304090 |
| Categories: | Amino Acids and Derivatives |
| PSA: | 88.6 | XLogP3: | -1.9 |
| Appearance: | White Crystals or Crystalline Powder | Density: | 3″>1.3 g/cm3 |
| Melting Point: | 281 °C (decomp) | Boiling Point: | 181 deg C (decomposes) |
| Flash Point: | 139.4±26.5 °C | Refractive Index: | 1.531 |
| Water Solubility: | H2O: 2.9 g/100 mL (20 ºC);1 M HCl: 0.5 M at 20 °C, clear, colorless | Storage Conditions: | 0-6°C |
| Vapor Pressure: | 8.14X10-8 mm Hg at 25 deg C (est) |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong oxidants. Well closed.