| 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. | 1.5 minutes | 32390414 |
| Predicted by Siyang on May 30, 2022 | 8.6447 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 6.16 minutes | 32390414 |
| AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 371.8 seconds | 40023050 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 400.9 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 320.5 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 43.5 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 205.8 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 78.1 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 273.1 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 | 221.7 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 860.3 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 555.1 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 37.3 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 | 649.0 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 207.9 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 312.5 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 757.6 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 529.7 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 | 370.3 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| Ureidopropionic acid,1TMS,isomer #1 | C[Si](C)(C)OC(=O)CCNC(N)=O | 1590.3 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,1TMS,isomer #2 | C[Si](C)(C)NC(=O)NCCC(=O)O | 1614.3 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,1TMS,isomer #3 | C[Si](C)(C)N(CCC(=O)O)C(N)=O | 1609.2 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #1 | C[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C | 1675.0 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #1 | C[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C | 1475.1 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #1 | C[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C | 2282.5 | Standard polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C | 1585.2 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C | 1559.0 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C | 2393.3 | Standard polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #3 | C[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C | 1727.3 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #3 | C[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C | 1609.8 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #3 | C[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C | 2317.0 | Standard polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #4 | C[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C | 1701.1 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #4 | C[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C | 1661.7 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TMS,isomer #4 | C[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C | 2219.5 | Standard polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C)[Si](C)(C)C | 1719.3 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C)[Si](C)(C)C | 1597.6 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C)[Si](C)(C)C | 1982.7 | Standard polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #2 | C[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C)[Si](C)(C)C | 1671.7 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #2 | C[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C)[Si](C)(C)C | 1619.3 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #2 | C[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C)[Si](C)(C)C | 1935.4 | Standard polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #3 | C[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C)[Si](C)(C)C | 1745.9 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #3 | C[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C)[Si](C)(C)C | 1787.0 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TMS,isomer #3 | C[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C)[Si](C)(C)C | 1926.1 | Standard polar | 33892256 |
| Ureidopropionic acid,4TMS,isomer #1 | C[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 1756.3 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,4TMS,isomer #1 | C[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 1769.4 | Standard non polar | 33892256 |
| Ureidopropionic acid,4TMS,isomer #1 | C[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 1725.3 | Standard polar | 33892256 |
| Ureidopropionic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCNC(N)=O | 1832.7 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=O)NCCC(=O)O | 1867.0 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(CCC(=O)O)C(N)=O | 1813.5 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C(C)(C)C | 2114.6 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C(C)(C)C | 1865.0 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(=O)NCCC(=O)O[Si](C)(C)C(C)(C)C | 2284.7 | Standard polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C(C)(C)C | 2029.9 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C(C)(C)C | 1970.3 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(N)=O)[Si](C)(C)C(C)(C)C | 2477.1 | Standard polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C(C)(C)C | 2156.4 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C(C)(C)C | 1999.9 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(=O)NCCC(=O)O)[Si](C)(C)C(C)(C)C | 2282.3 | Standard polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C(C)(C)C | 2138.6 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C(C)(C)C | 2002.2 | Standard non polar | 33892256 |
| Ureidopropionic acid,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O)[Si](C)(C)C(C)(C)C | 2263.9 | Standard polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2368.8 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2207.1 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCNC(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2227.0 | Standard polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2333.2 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2193.4 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(=O)N(CCC(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2242.2 | Standard polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2387.9 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2311.4 | Standard non polar | 33892256 |
| Ureidopropionic acid,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(CCC(=O)O)C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2223.3 | Standard polar | 33892256 |
| Ureidopropionic acid,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2615.6 | Semi standard non polar | 33892256 |
| Ureidopropionic acid,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2520.6 | Standard non polar | 33892256 |
| Ureidopropionic acid,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCN(C(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2209.5 | Standard polar | 33892256 |