Boc-L-lysine
N-alpha-(tert-Butoxycarbonyl)-L-lysine
CAS: 13734-28-6
Molecular Formula: C11H22N2O4
Boc-L-lysine - Names and Identifiers
| Name | N-alpha-(tert-Butoxycarbonyl)-L-lysine |
| Synonyms | Boc-Lys-OH Boc-L-lysine n-Boc-L-lysine N2-Boc-L-lysine N~2~-(tert-butoxycarbonyl)lysine N~6~-(tert-butoxycarbonyl)-L-lysine N-alpha-(tert-Butoxycarbonyl)-L-lysine (2S)-6-amino-2-(tert-butoxycarbonylamino)hexanoic acid (S)-2-[(tert-Butyloxycarbonyl)amino]-6-aminohexanoic acid (2S)-6-amino-2-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoic acid |
| CAS | 13734-28-6 |
| EINECS | 237-303-4 |
| InChI | InChI=1/C11H22N2O4/c1-11(2,3)17-10(16)13-7-5-4-6-8(12)9(14)15/h8H,4-7,12H2,1-3H3,(H,13,16)(H,14,15)/t8-/m0/s1 |
Boc-L-lysine - Physico-chemical Properties
| Molecular Formula | C11H22N2O4 |
| Molar Mass | 246.3 |
| Density | 1.1313 (rough estimate) |
| Melting Point | ~205°C (dec.)(lit.) |
| Boling Point | 389.3°C (rough estimate) |
| Specific Rotation(α) | 22 º (c=2, CH3OH) |
| Flash Point | 203.5°C |
| Water Solubility | Soluble in water. Slightly soluble in methanol. |
| Solubility | Acetic Acid (Slightly), Methanol (Slightly, Sonicated), Water (Slightly, Heated, |
| Vapor Presure | 5.65E-08mmHg at 25°C |
| Appearance | White solid |
| Color | White |
| BRN | 4252546 |
| pKa | 3.92±0.21(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Sensitive to heat |
| Refractive Index | 21.5 ° (C=2, MeOH) |
| MDL | MFCD00038203 |
Boc-L-lysine - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. 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 | 3 |
| HS Code | 2924 19 00 |
| Hazard Class | IRRITANT |
Boc-L-lysine - Reference Information
| Use | N-alpha-tert-butoxycarbonyl-L-lysine is a protected analog of the main amino acid involved in the binding of acetylcholine to protein. N-alpha-tert-butoxycarbonyl-L-lysine and other t-butoxycarbonyl (Boc) amino acids can be converted into their respective amino acids by cleavage of the urethane bond. |
| preparation | 1.0g lysine, 7.5g di-tert-butyl dicarbonate (BOC anhydride), 1.1g potassium hydroxide and not less than 20g ethanol were added to a 50ml round bottom flask, and stirred for 3 hours at 25-30 ℃ on a magnetic stirrer. Ethanol was removed from a rotary evaporator, 20g of ethyl acetate was added, 20g of water was washed three times, the upper organic layer was dried with sodium sulfate, then stirred and crystallified at 1-10 ℃ for 15 hours, filtered and dried to obtain 1.54g of white solid, which was ditert-butoxycarbonyllysine, and its molar yield was 65.0% (based on lysine). |
Last Update：2024-04-09 15:16:47
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