| 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. | 1.46 minutes | 32390414 |
| Predicted by Siyang on May 30, 2022 | 7.9074 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 6.55 minutes | 32390414 |
| AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 413.7 seconds | 40023050 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 363.5 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 280.1 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 51.9 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 185.9 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 89.6 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 271.3 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 | 217.1 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 934.4 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 506.0 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 35.5 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 | 526.6 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 184.6 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 338.3 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 761.0 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 683.2 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 | 360.5 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| Histidinal,1TMS,isomer #1 | C[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 1708.7 | Semi standard non polar | 33892256 |
| Histidinal,1TMS,isomer #1 | C[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 1567.4 | Standard non polar | 33892256 |
| Histidinal,1TMS,isomer #1 | C[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 2519.4 | Standard polar | 33892256 |
| Histidinal,1TMS,isomer #2 | C[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 1629.7 | Semi standard non polar | 33892256 |
| Histidinal,1TMS,isomer #2 | C[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 1739.6 | Standard non polar | 33892256 |
| Histidinal,1TMS,isomer #2 | C[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 2382.4 | Standard polar | 33892256 |
| Histidinal,1TMS,isomer #3 | C[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 1692.0 | Semi standard non polar | 33892256 |
| Histidinal,1TMS,isomer #3 | C[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 1713.2 | Standard non polar | 33892256 |
| Histidinal,1TMS,isomer #3 | C[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 2680.0 | Standard polar | 33892256 |
| Histidinal,2TMS,isomer #1 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=C[NH]C=N1 | 1906.7 | Semi standard non polar | 33892256 |
| Histidinal,2TMS,isomer #1 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=C[NH]C=N1 | 1798.0 | Standard non polar | 33892256 |
| Histidinal,2TMS,isomer #1 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=C[NH]C=N1 | 2311.1 | Standard polar | 33892256 |
| Histidinal,2TMS,isomer #2 | C[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C)C=N1 | 1920.5 | Semi standard non polar | 33892256 |
| Histidinal,2TMS,isomer #2 | C[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C)C=N1 | 1741.1 | Standard non polar | 33892256 |
| Histidinal,2TMS,isomer #2 | C[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C)C=N1 | 2436.9 | Standard polar | 33892256 |
| Histidinal,2TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C | 1769.8 | Semi standard non polar | 33892256 |
| Histidinal,2TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C | 1845.4 | Standard non polar | 33892256 |
| Histidinal,2TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C | 2238.2 | Standard polar | 33892256 |
| Histidinal,2TMS,isomer #4 | C[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C)C=N1 | 1796.8 | Semi standard non polar | 33892256 |
| Histidinal,2TMS,isomer #4 | C[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C)C=N1 | 1726.7 | Standard non polar | 33892256 |
| Histidinal,2TMS,isomer #4 | C[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C)C=N1 | 2202.0 | Standard polar | 33892256 |
| Histidinal,3TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C)[Si](C)(C)C | 2004.8 | Semi standard non polar | 33892256 |
| Histidinal,3TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C)[Si](C)(C)C | 1928.1 | Standard non polar | 33892256 |
| Histidinal,3TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C)[Si](C)(C)C | 2166.3 | Standard polar | 33892256 |
| Histidinal,3TMS,isomer #2 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=CN([Si](C)(C)C)C=N1 | 2053.3 | Semi standard non polar | 33892256 |
| Histidinal,3TMS,isomer #2 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=CN([Si](C)(C)C)C=N1 | 1824.4 | Standard non polar | 33892256 |
| Histidinal,3TMS,isomer #2 | C[Si](C)(C)NC(=CO[Si](C)(C)C)CC1=CN([Si](C)(C)C)C=N1 | 2265.2 | Standard polar | 33892256 |
| Histidinal,3TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C)C=N1)[Si](C)(C)C | 1959.9 | Semi standard non polar | 33892256 |
| Histidinal,3TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C)C=N1)[Si](C)(C)C | 1873.2 | Standard non polar | 33892256 |
| Histidinal,3TMS,isomer #3 | C[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C)C=N1)[Si](C)(C)C | 2116.0 | Standard polar | 33892256 |
| Histidinal,4TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C)C=N1)N([Si](C)(C)C)[Si](C)(C)C | 2147.0 | Semi standard non polar | 33892256 |
| Histidinal,4TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C)C=N1)N([Si](C)(C)C)[Si](C)(C)C | 1962.7 | Standard non polar | 33892256 |
| Histidinal,4TMS,isomer #1 | C[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C)C=N1)N([Si](C)(C)C)[Si](C)(C)C | 2148.3 | Standard polar | 33892256 |
| Histidinal,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 1950.2 | Semi standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 1805.4 | Standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=C[NH]C=N1 | 2716.5 | Standard polar | 33892256 |
| Histidinal,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 1859.7 | Semi standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 1973.2 | Standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=C[NH]C=N1 | 2451.7 | Standard polar | 33892256 |
| Histidinal,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 1954.3 | Semi standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 1882.7 | Standard non polar | 33892256 |
| Histidinal,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N1C=NC(C[C@H](N)C=O)=C1 | 2771.7 | Standard polar | 33892256 |
| Histidinal,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=C[NH]C=N1 | 2353.0 | Semi standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=C[NH]C=N1 | 2195.2 | Standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=C[NH]C=N1 | 2459.5 | Standard polar | 33892256 |
| Histidinal,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2356.7 | Semi standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2143.7 | Standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC=C(N)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2633.5 | Standard polar | 33892256 |
| Histidinal,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C(C)(C)C | 2178.2 | Semi standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C(C)(C)C | 2291.8 | Standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=C[NH]C=N1)[Si](C)(C)C(C)(C)C | 2338.3 | Standard polar | 33892256 |
| Histidinal,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2261.6 | Semi standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2141.1 | Standard non polar | 33892256 |
| Histidinal,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N[C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2308.8 | Standard polar | 33892256 |
| Histidinal,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2598.5 | Semi standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2471.1 | Standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=C[NH]C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2402.0 | Standard polar | 33892256 |
| Histidinal,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2683.1 | Semi standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2366.3 | Standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=CO[Si](C)(C)C(C)(C)C)CC1=CN([Si](C)(C)C(C)(C)C)C=N1 | 2471.1 | Standard polar | 33892256 |
| Histidinal,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1)[Si](C)(C)C(C)(C)C | 2595.7 | Semi standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1)[Si](C)(C)C(C)(C)C | 2472.0 | Standard non polar | 33892256 |
| Histidinal,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N([C@H](C=O)CC1=CN([Si](C)(C)C(C)(C)C)C=N1)[Si](C)(C)C(C)(C)C | 2342.9 | Standard polar | 33892256 |
| Histidinal,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C(C)(C)C)C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2914.3 | Semi standard non polar | 33892256 |
| Histidinal,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C(C)(C)C)C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2663.8 | Standard non polar | 33892256 |
| Histidinal,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC=C(CC1=CN([Si](C)(C)C(C)(C)C)C=N1)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2469.8 | Standard polar | 33892256 |