816014 Sigma-Aldrich(R)-(+)-Cysteine
(R)-(+)-Cysteine for synthesis. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C).
More>> (R)-(+)-Cysteine for synthesis. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C). Less<<Synonyms: a-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid
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Overview
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Key Spec Table
| CAS # | EC Number | Hill Formula | Molar Mass |
|---|---|---|---|
| 52-90-4 | 200-158-2 | C₃H₇N O₂S | 121.16 g/mol |
Pricing & Availability
| Catalogue Number | Availability | Packaging | Qty/Pack | Price | Quantity | |
|---|---|---|---|---|---|---|
| 8160140025 |
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Plastic bottle | 25 g |
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| 8160140100 |
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Plastic bottle | 100 g |
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| Description | |
|---|---|
| Catalogue Number | 816014 |
| Synonyms | a-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid |
| References |
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| Product Information | |
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| CAS number | 52-90-4 |
| EC number | 200-158-2 |
| Hill Formula | C₃H₇N O₂S |
| Molar Mass | 121.16 g/mol |
| HS Code | 2930 90 13 |
| Structure formula Image | |
| Quality Level | MQ200 |
| Applications | |
|---|---|
| Application | (R)-(+)-Cysteine for synthesis. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C). |
| Biological Information |
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| Physicochemical Information | |
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| Density | 1.66 g/cm3 (45 °C) |
| Ignition temperature | 420 °C |
| Melting Point | >203 °C |
| pH value | 4.5 - 5.5 (100 g/l, H₂O, 20 °C) |
| Bulk density | 300 kg/m3 |
| Solubility | 280 g/l |
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| Materials Information |
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| Toxicological Information | |
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| LD 50 oral | LD50 Rat 1890 mg/kg |
| Safety Information | |
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| Categories of danger | harmful |
| Product Usage Statements |
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| Storage and Shipping Information | |
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| Storage | Store below +30°C. |
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| Transport Information |
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| Supplemental Information |
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| Specifications | |
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| Assay (HClO₄) | ≥ 98.0 % |
| Spec. rotation [α²0/D (c=8 in HCl 1 mol/l) | +8.0 - +9.5 ° |
| Identity (IR) | passes test |
| Global Trade Item Number | |
|---|---|
| Catalogue Number | GTIN |
| 8160140025 | 04022536423739 |
| 8160140100 | 04022536423746 |



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