| Substance P (1-4) | Arg-Pro-Lys-Pro | C22H40N8O5 | 496.6 |
| Substance P (7-11) | Phe-Phe-Gly-Leu-Met-NH2 | C31H44N6O5S | 612.8 |
| Substance P (1-7) | Arg-Pro-Lys-Pro-Gln-Gln-Phe | C41H65N13O10 | 900.06 |
| Substance P (1-9) | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly | C52H77N15O12 | 1104.3 |
| Substance P, Free Acid | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met | C63H97N17O14S | 1348.65 |
| Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C63H98N18O13S | 1347.66 |
| [Pro9] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Pro-Leu-Met- NH2 | C66H102N18O13S | 1387.73 |
| [Tyr8] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Tyr-Gly-Leu-Met-NH2 | C63H98N18O14S | 1363.66 |
| [Sar9] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Sar-Leu-Met-NH2 | C64H100N18O13S | 1361.61 |
| [Nle11] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Nle-NH2 | C64H100N18O13 | 1329.62 |
| [D-Arg1,D-Pro2,D-Trp7,9,Leu11]-Substance P | D-Arg-D-Pro-Lys-Pro-Gln-Gln-D-Trp-Phe-D-Trp-Leu-Leu-NH2 | C75H108N20O13 | 1497.82 |
| [D-Arg1,D-Trp7,9,Leu11]-Substance P | D-Arg-Pro-Lys-Pro-Gln-Gln-D-Trp-Phe-D-Trp-Leu-Leu-NH2 | C75H108N20O13 | 1497.82 |
| [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P | D-Arg-Pro-Lys-Pro-D-Phe-Gln-D-Trp-Phe-D-Trp-Leu-Leu-NH2 | C79H109N19O12 | 1516.87 |
| Scyliorhinin I, Scy I; Shark Substance P Related Peptide | Ala-Lys-Phe-Asp-Lys-Phe-Tyr-Gly-Leu-Met | C59H86N12O14S | 1219.48 |
| Biotin-Substance P | Biotin-Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C73H112N20O15S2 | 1573.96 |
| Substance P (2-11)/Deca-Substance P | Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C57H86N14O12S | 1191.47 |
| Substance P (3-11)/Nona-Substance P | Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C52H79N13O11S | 1094.35 |
| Substance P (4-11)/Octa-Substance P | Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C46H67N11O10S | 966.18 |
| Substance P (5-11)/Hepta-Substance P | Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C41H60N10O9S | 869.06 |
| Substance P (6-11)/Hexa-Substance P | Gln-Phe-Phe-Gly-Leu-Met-NH2 | C36H52N8O7S | 704.93 |
| Substance P (9-11) | Gly-Leu-Met-NH2 | C13H26N4O3S | 318.44 |
| Substance P reversed sequence | Met-Leu-Gly-Phe-Phe-Gln-Gln-Pro-Lys-Pro-Arg-NH2 | C63H98N18O13S | 1347.66 |
| Substance P-Gly-Lys-Arg | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-Gly-Lys-Arg | C77H124N24O17S | 1690.06 |
| [Arg3] Substance P | Arg-Pro-Arg-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 | C63H98N20O13S | 1375.67 |
| [Asp5,6,Me-Phe8] Substance P | Asp-Asp-Phe-Me-Phe-Gly-Leu-Met-NH2 | C40H56N8O11S | 857.00 |
| [Gly11] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Gly-NH2 | C60H92N18O13 | 1273.52 |
| [His11]Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-His-NH2 | C64H96N20O13 | 1353.60 |
| [Tyr8,Nle11] Substance P | Arg-Pro-Lys-Pro-Gln-Gln-Phe-Tyr-Gly-Leu-Nle-NH2 | C64H100N18O14 |
1345.62 |
