N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine
Fmoc-Thr(tBu)-OH
CAS: 71989-35-0
Molecular Formula: C23H27NO5
N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine - Names and Identifiers
| Name | Fmoc-Thr(tBu)-OH |
| Synonyms | Fmoc-THr(Bu)-OH Fmoc-Thr(tBu)-OH Fmoc-Thr(OtBu)-OH Fmoc-O-tert.butyl-L-threonine FMOC-O-tert-Butyl-L-threonine N-alpha-Fmoc-o-t-butyl-L-threo FMOC-O-TERT-BUTYL-L-THREONINE (FMOC-L-THR(TBU)-OH) (9-fluorenylmethoxycarbonyl)-O-tert-butyl-L-threonine N-(9-FLUORENYLMETHOXYCARBONYL)-2-TERT-BUTYL-L-THREONINE O-tert-butyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]threonine O-tert-butyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-threonine NALPHA-9-Fluorenylmethoxycarbonyl-L-threonine tert-butyl ester N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine L-Threonine, O-(1,1-dimethylethyl)-N-(9H-fluoren-9-ylmethoxy)carbonyl- (2S,3R)-3-tert-butoxy-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}butanoate |
| CAS | 71989-35-0 |
| EINECS | 276-261-1 |
| InChI | InChI=1/C23H27NO5/c1-14(29-23(2,3)4)20(21(25)26)24-22(27)28-13-19-17-11-7-5-9-15(17)16-10-6-8-12-18(16)19/h5-12,14,19-20H,13H2,1-4H3,(H,24,27)(H,25,26)/p-1/t14-,20+/m1/s1 |
| InChIKey | LZOLWEQBVPVDPR-VLIAUNLRSA-N |
N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine - Physico-chemical Properties
| Molecular Formula | C23H27NO5 |
| Molar Mass | 397.46 |
| Density | 1.2197 (rough estimate) |
| Melting Point | 131-134°C |
| Boling Point | 520.91°C (rough estimate) |
| Specific Rotation(α) | 40 º (c=1, chloroform) |
| Flash Point | 305.6°C |
| Solubility | almost transparency in Ethylacetate |
| Vapor Presure | 2.24E-14mmHg at 25°C |
| Appearance | White to Light Yellow Crystal |
| Color | White |
| BRN | 4581133 |
| pKa | 3.42±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 15 ° (C=1, AcOEt) |
| MDL | MFCD00077075 |
| Physical and Chemical Properties | White crystalline powder; Insoluble in water and petroleum ether, soluble in ethyl acetate and DMF;mp is 129-132 ℃; Specific optical rotation [α]20D 15.5 °(0.5-2.0 mg/ml, ethyl acetate),[Α] 20D-4.5 °(0.5-2.0 mg/ml,DMF). |
N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S27 - Take off immediately all contaminated clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S29/56 - |
| UN IDs | 3077 |
| WGK Germany | 3 |
| HS Code | 29242990 |
N-Fmoc-O-tert-Butyl-L-threonine, Fmoc-O-tert-butyl-L-threonine - Reference Information
| uses | is used for polypeptide synthesis, as amino acid protecting monomer. |
| production method | O-tert-butyl-L-threonine is suspended in dioxane solution, the crude product is obtained by acylation reaction with fluorenylmethoxycarbonyl azide, which is extracted with ethyl acetate at pH 9-10 and purified by recrystallization. |
Last Update：2024-04-09 02:00:11
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CAS: 71989-35-0
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