| 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. | 0.84 minutes | 32390414 |
| Predicted by Siyang on May 30, 2022 | 8.8217 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 6.06 minutes | 32390414 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 420.6 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 251.8 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 64.4 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 167.4 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 48.6 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 276.2 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 | 254.4 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 816.5 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 583.6 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 41.2 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 | 684.1 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 187.7 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 196.9 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 873.0 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 502.2 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 | 197.8 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| Dimethylguanidino valeric acid,1TMS,isomer #1 | CN(C)C(=N)NCCCC(=O)C(=O)O[Si](C)(C)C | 1991.2 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TMS,isomer #2 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C)C(=O)O | 2128.0 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TMS,isomer #3 | CN(C)C(=N[Si](C)(C)C)NCCCC(=O)C(=O)O | 2036.9 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TMS,isomer #4 | CN(C)C(=N)N(CCCC(=O)C(=O)O)[Si](C)(C)C | 2045.2 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2092.9 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1819.8 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 3048.7 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #2 | CN(C)C(=N[Si](C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C | 1962.2 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #2 | CN(C)C(=N[Si](C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C | 1708.3 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #2 | CN(C)C(=N[Si](C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C | 2885.4 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1990.0 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1862.2 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2828.0 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O | 2106.0 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O | 1806.4 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O | 3028.0 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2094.5 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 1960.6 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 3040.4 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #6 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C | 2060.5 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #6 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C | 1861.9 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TMS,isomer #6 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C | 2809.1 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2054.7 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1748.6 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)NCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2693.3 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2060.3 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1980.1 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2621.7 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #3 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2028.0 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #3 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1847.8 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #3 | CN(C)C(=N[Si](C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2402.0 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2113.3 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 1959.3 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TMS,isomer #4 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2604.4 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,4TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2075.8 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,4TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 1866.9 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,4TMS,isomer #1 | CN(C)C(=N[Si](C)(C)C)N(CCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2297.3 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,1TBDMS,isomer #1 | CN(C)C(=N)NCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C | 2233.3 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TBDMS,isomer #2 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O | 2338.0 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TBDMS,isomer #3 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCCC(=O)C(=O)O | 2282.3 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,1TBDMS,isomer #4 | CN(C)C(=N)N(CCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2297.5 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2524.1 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2197.9 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #1 | CN(C)C(=N)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 3027.9 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #2 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C | 2408.6 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #2 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C | 2094.0 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #2 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C | 2873.4 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2454.4 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2277.6 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #3 | CN(C)C(=N)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2880.2 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O | 2522.9 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O | 2131.8 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O | 2998.1 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2552.3 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2340.4 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #5 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3019.4 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #6 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2494.2 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #6 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2250.9 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,2TBDMS,isomer #6 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2787.6 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2652.7 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2178.3 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)NCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2826.2 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2705.8 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2502.6 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #2 | CN(C)C(=N)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2823.3 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #3 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2641.1 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #3 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2409.1 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #3 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2667.9 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2730.2 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2412.4 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,3TBDMS,isomer #4 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2784.9 | Standard polar | 33892256 |
| Dimethylguanidino valeric acid,4TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2863.4 | Semi standard non polar | 33892256 |
| Dimethylguanidino valeric acid,4TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2470.6 | Standard non polar | 33892256 |
| Dimethylguanidino valeric acid,4TBDMS,isomer #1 | CN(C)C(=N[Si](C)(C)C(C)(C)C)N(CCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2662.9 | Standard polar | 33892256 |