| Chromatographic Method | Retention Time | Reference |
|---|
| Predicted by Siyang on May 30, 2022 | 9.3003 minutes | 33406817 |
| Predicted by Siyang using ReTip algorithm on June 8, 2022 | 7.4 minutes | 32390414 |
| Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 431.2 seconds | 40023050 |
| Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 233.6 seconds | 40023050 |
| Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 57.5 seconds | 40023050 |
| Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 157.9 seconds | 40023050 |
| RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 48.1 seconds | 40023050 |
| Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 278.2 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 | 257.5 seconds | 40023050 |
| HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 818.6 seconds | 40023050 |
| UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 571.4 seconds | 40023050 |
| BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 54.4 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 | 825.0 seconds | 40023050 |
| SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 185.0 seconds | 40023050 |
| RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 222.8 seconds | 40023050 |
| MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 469.4 seconds | 40023050 |
| KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 487.4 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 | 360.8 seconds | 40023050 |
| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| N-Acetylcarnosine,2TMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2685.2 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2533.9 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 3498.2 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2650.9 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2502.5 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 3506.2 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2799.5 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2476.4 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C | 3556.9 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 2579.0 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 2652.5 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 3602.1 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2800.0 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2654.6 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 3683.0 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2724.4 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 2593.4 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C | 3661.3 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2586.0 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2583.6 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 3174.7 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2740.1 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2579.7 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 3237.7 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2720.2 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 2548.1 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C | 3250.6 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 2689.1 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 2717.7 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O)[Si](C)(C)C)[Si](C)(C)C | 3348.5 | Standard polar | 33892256 |
| N-Acetylcarnosine,4TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2686.6 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,4TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 2661.9 | Standard non polar | 33892256 |
| N-Acetylcarnosine,4TMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C | 3021.2 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3113.8 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2932.3 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #1 | CC(=O)N(CCC(=O)NC(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3518.5 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3123.7 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2903.2 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #2 | CC(=O)NCCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3515.3 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 3280.4 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2906.3 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #3 | CC(=O)NCCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 3535.6 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3053.6 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3007.3 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3592.0 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3251.2 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3021.8 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #5 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3641.1 | Standard polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3234.4 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 2975.1 | Standard non polar | 33892256 |
| N-Acetylcarnosine,2TBDMS,isomer #6 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C | 3610.8 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3232.8 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3126.3 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=C[NH]1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3351.8 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3409.9 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3179.2 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #2 | CC(=O)N(CCC(=O)NC(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3377.5 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3432.5 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3147.6 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #3 | CC(=O)NCCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3372.3 | Standard polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3391.5 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3251.4 | Standard non polar | 33892256 |
| N-Acetylcarnosine,3TBDMS,isomer #4 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3461.2 | Standard polar | 33892256 |
| N-Acetylcarnosine,4TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3554.9 | Semi standard non polar | 33892256 |
| N-Acetylcarnosine,4TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3398.2 | Standard non polar | 33892256 |
| N-Acetylcarnosine,4TBDMS,isomer #1 | CC(=O)N(CCC(=O)N(C(CC1=CN=CN1[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3288.0 | Standard polar | 33892256 |