DL-Methionine（CAS# 59-51-8)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | R33 – Danger of cumulative effects R36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 – Avoid contact with skin and eyes. S36 – Wear suitable protective clothing. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 2 |
| RTECS | PD0457000 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | Yes |
| HS Code | 29304090 |
Introduction
DL-Methionine is a non-polar amino acid. Its properties are white crystalline powder, odorless, slightly bitter, soluble in water.
DL-Methionine can be prepared by a variety of methods. The most commonly used method is through chemical synthesis. Specifically, DL-methionine can be generated by an acylation reaction of alanine followed by a reduction reaction.
Safety Information: DL-Methionine is safe with normal use and moderate intake. Excessive intake may cause some side effects such as nausea, vomiting, and diarrhea. It should be used with caution for certain groups of people, such as pregnant women, infants and young children, and people with allergies.
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