| Chromatographic Method | Retention Time | Reference |
|---|
| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 1.48 minutes | 32390414 |
| Predicted by Siyang on May 30, 2022 | 10.2889 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 8.03 minutes | 32390414 |
| AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 342.4 seconds | 40023050 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 709.3 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 250.4 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 56.7 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 156.6 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 43.5 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 298.6 seconds | 40023050 |
| BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 255.4 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 597.0 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 616.2 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 101.1 seconds | 40023050 |
| UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 761.1 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 162.8 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 192.3 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 446.6 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 470.0 seconds | 40023050 |
| Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 270.5 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| Valylthreonine,1TMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O)C(C)O[Si](C)(C)C | 1818.3 | Semi standard non polar | 33892256 |
| Valylthreonine,1TMS,isomer #2 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O[Si](C)(C)C)C(C)O | 1805.8 | Semi standard non polar | 33892256 |
| Valylthreonine,1TMS,isomer #3 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@H](C(=O)O)C(C)O | 1828.7 | Semi standard non polar | 33892256 |
| Valylthreonine,1TMS,isomer #4 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O)C(C)O)[Si](C)(C)C | 1790.8 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C | 1845.8 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@H](C(=O)O)C(C)O[Si](C)(C)C | 1889.2 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #3 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1844.7 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C)C(C)O | 1882.8 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #5 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O)[Si](C)(C)C | 1799.0 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #6 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O | 1995.3 | Semi standard non polar | 33892256 |
| Valylthreonine,2TMS,isomer #7 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O)[Si](C)(C)C | 1860.1 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C | 1925.1 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C | 1890.6 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1862.1 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1965.7 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #3 | CC(O[Si](C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O | 2033.0 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #3 | CC(O[Si](C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O | 1956.5 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1907.6 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1924.1 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #5 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1990.8 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #5 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1943.6 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O)[Si](C)(C)C | 1859.9 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O)[Si](C)(C)C | 1912.4 | Standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #7 | CC(O)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 1996.7 | Semi standard non polar | 33892256 |
| Valylthreonine,3TMS,isomer #7 | CC(O)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 1990.1 | Standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #1 | CC(O[Si](C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2023.8 | Semi standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #1 | CC(O[Si](C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2034.7 | Standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1922.9 | Semi standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C)C(C)O[Si](C)(C)C)[Si](C)(C)C | 1982.1 | Standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #3 | CC(O[Si](C)(C)C)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2065.2 | Semi standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #3 | CC(O[Si](C)(C)C)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2072.8 | Standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #4 | CC(O)[C@@H](C(=O)O[Si](C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2022.4 | Semi standard non polar | 33892256 |
| Valylthreonine,4TMS,isomer #4 | CC(O)[C@@H](C(=O)O[Si](C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2064.9 | Standard non polar | 33892256 |
| Valylthreonine,5TMS,isomer #1 | CC(O[Si](C)(C)C)[C@@H](C(=O)O[Si](C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2127.0 | Semi standard non polar | 33892256 |
| Valylthreonine,5TMS,isomer #1 | CC(O[Si](C)(C)C)[C@@H](C(=O)O[Si](C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2146.0 | Standard non polar | 33892256 |
| Valylthreonine,1TBDMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O)C(C)O[Si](C)(C)C(C)(C)C | 2043.1 | Semi standard non polar | 33892256 |
| Valylthreonine,1TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O | 2046.8 | Semi standard non polar | 33892256 |
| Valylthreonine,1TBDMS,isomer #3 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(=O)O)C(C)O | 2067.0 | Semi standard non polar | 33892256 |
| Valylthreonine,1TBDMS,isomer #4 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O)C(C)O)[Si](C)(C)C(C)(C)C | 2011.4 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C | 2267.7 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(=O)O)C(C)O[Si](C)(C)C(C)(C)C | 2317.4 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #3 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2279.2 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O | 2311.2 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #5 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O)[Si](C)(C)C(C)(C)C | 2246.1 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #6 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O | 2435.4 | Semi standard non polar | 33892256 |
| Valylthreonine,2TBDMS,isomer #7 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O)[Si](C)(C)C(C)(C)C | 2305.0 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C | 2541.4 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C | 2459.3 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2482.5 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2541.7 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #3 | CC(O[Si](C)(C)C(C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O | 2715.3 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #3 | CC(O[Si](C)(C)C(C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O | 2492.9 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2556.7 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2468.3 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #5 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2682.9 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #5 | CC(O)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2496.2 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O)[Si](C)(C)C(C)(C)C | 2525.3 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O)[Si](C)(C)C(C)(C)C | 2473.4 | Standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #7 | CC(O)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2650.9 | Semi standard non polar | 33892256 |
| Valylthreonine,3TBDMS,isomer #7 | CC(O)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2533.7 | Standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #1 | CC(O[Si](C)(C)C(C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2922.7 | Semi standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #1 | CC(O[Si](C)(C)C(C)(C)C)[C@H](NC(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2730.6 | Standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2760.8 | Semi standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@H](C(=O)O[Si](C)(C)C(C)(C)C)C(C)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2708.6 | Standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #3 | CC(O[Si](C)(C)C(C)(C)C)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2925.5 | Semi standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #3 | CC(O[Si](C)(C)C(C)(C)C)[C@@H](C(=O)O)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2762.1 | Standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #4 | CC(O)[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2878.7 | Semi standard non polar | 33892256 |
| Valylthreonine,4TBDMS,isomer #4 | CC(O)[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2769.0 | Standard non polar | 33892256 |
| Valylthreonine,5TBDMS,isomer #1 | CC(O[Si](C)(C)C(C)(C)C)[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3166.7 | Semi standard non polar | 33892256 |
| Valylthreonine,5TBDMS,isomer #1 | CC(O[Si](C)(C)C(C)(C)C)[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)[C@H](C(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3004.1 | Standard non polar | 33892256 |