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商品の詳細:
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| 製品名: | Lシステイン | CAS: | 52-90-4 |
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| 形状: | 固体 | 色: | 白 |
| ストレージ温度。: | 以下 +30°Cを保存します。 | einecs: | 200-158-2 |
| ph: | 4.5-5.5（100g/l、H2O、20℃） |
L-Cysteine CAS 52-90-4
| L-Cysteine Basic information |
| Product Name: | L-Cysteine |
| Synonyms: | (R)-2-Amino-3-mercaptopropanoic acid;3-mercapto-l-alanin;alpha-amino-beta-mercaptopropionicacid;alpha-Amino-beta-thiolpropionic acid;alpha-amino-beta-thiolpropionicacid;Cystein;half-cysteine;L-Cysteine - animal origin |
| CAS: | 52-90-4 |
| MF: | C3H7NO2S |
| MW: | 121.16 |
| EINECS: | 200-158-2 |
| Product Categories: | Amino Acids;API intermediates;Cysteine [Cys, C];Amino Acids;Amino Acids and Derivatives;alpha-Amino Acids;Antioxidant;Biochemistry;Nutritional Supplements;L-Amino Acids;amino;52-90-4 |
| Mol File: | 52-90-4.mol |
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| L-Cysteine Chemical Properties |
| Melting point | 240 °C (dec.) (lit.) |
| alpha | 8.75 º (c=12, 2N HCl) |
| Boiling point | 293.9±35.0 °C(Predicted) |
| density | 1.197 (estimate) |
| bulk density | 300kg/m3 |
| FEMA | 3263 | L-CYSTEINE |
| refractive index | 8.8 ° (C=8, 1mol/L HCl) |
| storage temp. | Store below +30°C. |
| solubility | H2O: 25 mg/mL |
| pka | 1.92(at 25℃) |
| form | Solid |
| color | White |
| PH | 4.5-5.5 (100g/l, H2O, 20℃) |
| Odor | sulfury |
| Odor Type | sulfurous |
| Optical Rotation | Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C). |
| biological source | non-animal source |
| Water Solubility | 280 g/L (25 ºC) |
| Sensitive | Air Sensitive |
| λmax | λ: 260 nm Amax: 1.5 λ: 280 nm Amax: 0.2 |
| JECFA Number | 1419 |
| BRN | 1721408 |
| Stability: | Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases. |
| LogP | -2.49 |
| CAS DataBase Reference | 52-90-4(CAS DataBase Reference) |
| NIST Chemistry Reference | L-Cysteine(52-90-4) |
| EPA Substance Registry System | L-Cysteine (52-90-4) |
| Safety Information |
| Hazard Codes | Xn,Xi |
| Risk Statements | 22-36/37/38-20/21/22 |
| Safety Statements | 36-37/39-26-24/25 |
| WGK Germany | 3 |
| RTECS | HA1600000 |
| F | 10-23 |
| Autoignition Temperature | 420 °C |
| TSCA | Yes |
| HS Code | 29309012 |
| Hazardous Substances Data | 52-90-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 1890 mg/kg |
コンタクトパーソン: Maggie Ma
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