| 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. | 1.29 minutes | 32390414 |
| Predicted by Siyang on May 30, 2022 | 10.3003 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 8.42 minutes | 32390414 |
| AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 360.1 seconds | 40023050 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 618.0 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 272.7 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 49.4 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 163.1 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 46.9 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 308.5 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 | 247.6 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 709.3 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 622.6 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 70.2 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 | 799.9 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 169.5 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 202.5 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 504.7 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 453.9 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 | 306.5 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| Valylserine,1TMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O | 1798.2 | Semi standard non polar | 33892256 |
| Valylserine,1TMS,isomer #2 | CC(C)[C@H](N)C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C | 1795.7 | Semi standard non polar | 33892256 |
| Valylserine,1TMS,isomer #3 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@@H](CO)C(=O)O | 1824.5 | Semi standard non polar | 33892256 |
| Valylserine,1TMS,isomer #4 | CC(C)[C@H](N)C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C | 1773.1 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1816.5 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O | 1864.2 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #3 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 1822.7 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C | 1873.9 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #5 | CC(C)[C@H](N)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1781.3 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #6 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 1987.4 | Semi standard non polar | 33892256 |
| Valylserine,2TMS,isomer #7 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C | 1840.6 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1898.9 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1883.1 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1849.2 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1938.5 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #3 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 2014.5 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #3 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 1954.2 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 1888.0 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 1909.4 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #5 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2002.3 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #5 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1930.5 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1848.9 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1885.1 | Standard non polar | 33892256 |
| Valylserine,3TMS,isomer #7 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1970.5 | Semi standard non polar | 33892256 |
| Valylserine,3TMS,isomer #7 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1982.4 | Standard non polar | 33892256 |
| Valylserine,4TMS,isomer #1 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2008.8 | Semi standard non polar | 33892256 |
| Valylserine,4TMS,isomer #1 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2020.0 | Standard non polar | 33892256 |
| Valylserine,4TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1901.6 | Semi standard non polar | 33892256 |
| Valylserine,4TMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1948.4 | Standard non polar | 33892256 |
| Valylserine,4TMS,isomer #3 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2047.6 | Semi standard non polar | 33892256 |
| Valylserine,4TMS,isomer #3 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2058.2 | Standard non polar | 33892256 |
| Valylserine,4TMS,isomer #4 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2017.3 | Semi standard non polar | 33892256 |
| Valylserine,4TMS,isomer #4 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2044.5 | Standard non polar | 33892256 |
| Valylserine,5TMS,isomer #1 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2106.7 | Semi standard non polar | 33892256 |
| Valylserine,5TMS,isomer #1 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2111.5 | Standard non polar | 33892256 |
| Valylserine,1TBDMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O | 2040.4 | Semi standard non polar | 33892256 |
| Valylserine,1TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C | 2048.6 | Semi standard non polar | 33892256 |
| Valylserine,1TBDMS,isomer #3 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@@H](CO)C(=O)O | 2067.0 | Semi standard non polar | 33892256 |
| Valylserine,1TBDMS,isomer #4 | CC(C)[C@H](N)C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C(C)(C)C | 2014.4 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #1 | CC(C)[C@H](N)C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2258.1 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O | 2299.7 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #3 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2286.8 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C | 2309.1 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #5 | CC(C)[C@H](N)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2240.8 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #6 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2455.7 | Semi standard non polar | 33892256 |
| Valylserine,2TBDMS,isomer #7 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C(C)(C)C | 2301.8 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2517.9 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #1 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2458.3 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2489.0 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #2 | CC(C)[C@H](N)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2532.8 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #3 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2695.2 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #3 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2498.4 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2551.9 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #4 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2461.4 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #5 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2686.3 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #5 | CC(C)[C@@H](C(=O)N[C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2485.6 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2524.3 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #6 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2464.9 | Standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #7 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2657.1 | Semi standard non polar | 33892256 |
| Valylserine,3TBDMS,isomer #7 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2526.6 | Standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #1 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2901.5 | Semi standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #1 | CC(C)[C@@H](C(=O)N[C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2718.7 | Standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2752.7 | Semi standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #2 | CC(C)[C@H](N[Si](C)(C)C(C)(C)C)C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2683.0 | Standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #3 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2900.6 | Semi standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #3 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2746.6 | Standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #4 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2871.4 | Semi standard non polar | 33892256 |
| Valylserine,4TBDMS,isomer #4 | CC(C)[C@@H](C(=O)N([C@@H](CO)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2758.0 | Standard non polar | 33892256 |
| Valylserine,5TBDMS,isomer #1 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3143.2 | Semi standard non polar | 33892256 |
| Valylserine,5TBDMS,isomer #1 | CC(C)[C@@H](C(=O)N([C@@H](CO[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2984.8 | Standard non polar | 33892256 |