| Starmarella bombicola/Glucose/Methyl Rapeseedate Ferment | YY3ZA9UHH9 | specifiedSubstanceG1 |
| Stathmin-2 | 2LY4XFH77W | protein |
| Statolon | OQY27SE80Z | structurallyDiverse |
| Stavudine | BO9LE4QFZF | chemical |
| Stavudine ?-anomer | J69N0KNC59 | chemical |
| Stearalkonium bentonite | AH5EVE6GTY | chemical |
| Stearamidoethyl diethylamine | 25FFJ4209Z | chemical |
| Stearamidoethyl diethylamine phosphonate | BH5A59AP2M | chemical |
| Stearamidoethyl(2-hydroxyethyl)amine, acetate | 7U5DBD3HD4 | chemical |
| Stearamidomethylpyridinium | 2J99SJR5LV | chemical |
| Stearic acid | 4ELV7Z65AP | chemical |
| Stearoyl diethylenetriamine | 12IWG6E3O8 | chemical |
| Stearoyl diethylenetriamine acetate | 27NE3C7TK9 | chemical |
| Stearoyl diethylenetriamine diacetate | 8TT8CQQ9TW | chemical |
| Stearoyl diethylenetriamine hydrochloride | L82FB3F6U3 | chemical |
| Stearoyldiethanolamide monostearate | 9BQV22WH6S | chemical |
| Stearyl quaternium-80 | 3H4NE2GC4N | polymer |
| Steffimycin | 48V353KY77 | chemical |
| Stellasterol | KAJ6D5YMH2 | chemical |
| Stemphyltoxin II | TRM77VB4PJ | chemical |
| Stenochlaena tenuifolia whole | 298Z4WC802 | structurallyDiverse |
| Stephania cephalantha whole | E8WRS53KD6 | structurallyDiverse |
| Stephania epigaea whole | Q5V39GS2KW | structurallyDiverse |
| Stepronin lysine | B0592FL1C4 | chemical |
| Steroid hormone receptor ERR2 | OK1QE7QD5S | protein |
| Sterol O-acyltransferase 1 | ZX7XK4NS7A | protein |
| Stictic acid | NZR6AX77LP | chemical |
| Stigmast-7-en-3-ol, (3?,5?)- | 11L60JD672 | chemical |
| Stigmastane, (5?)- | Z454BZJ5T3 | chemical |
| Stigmastane, (5?)- | EA5GAZ3ZUE | chemical |
| Stigmastane, (5?,24S)- | 9TH7LZJ9EG | chemical |
| Stigmastane-3,6-dione, (5?)- | ZJ56JQ4CVD | chemical |
| Stigmastane-3?,5?,6?-triol | 83PAZ7H88D | chemical |
| Stilbene oxide, trans- | 1GG17D822U | chemical |
| Stilbene, (E)- | 3FA7NW80A0 | chemical |
| Streptococcus agalactiae | 2B3763S671 | structurallyDiverse |
| Streptococcus agalactiae serotype Ia | 2V27LX86RT | structurallyDiverse |
| Streptococcus agalactiae serotype Ib | UZ5UKS28GU | structurallyDiverse |
| Streptococcus agalactiae serotype VII whole | NRB57J9TAW | structurallyDiverse |
| Streptococcus pneumoniae Type 17F capsular heptasaccharide repeat unit | P87S3EP9CN | chemical |
| Streptococcus pneumoniae serotype 16F whole | Z5DWY85YL7 | structurallyDiverse |
| Streptococcus pneumoniae serotype 23A whole | 3GW22VLN4Q | structurallyDiverse |
| Streptococcus pneumoniae serotype 23B whole | 2HE3P6A2CJ | structurallyDiverse |
| Streptococcus pneumoniae serotype 24F whole | 9P94BZ2PLX | structurallyDiverse |
| Streptococcus pneumoniae serotype 31 whole | DS9DCB2K99 | structurallyDiverse |
| Streptococcus pneumoniae serotype 35B whole | 99D72TQR7L | structurallyDiverse |
| Streptococcus pneumoniae serotype 4 (ST4) tetrasaccharide with pyruvate | 5BL9W4K7LM | chemical |
| Streptococcus pneumoniae type 16F capsular polysaccharide diphtheria CRM197 protein conjugate antigen | CFR26X8KJY | structurallyDiverse |
| Streptococcus pneumoniae type 17F capsular polysaccharide diphtheria CRM197 protein conjugate antigen | DMY47L4YVQ | structurallyDiverse |
| Streptococcus pneumoniae type 19A capsular polysaccharide diphtheria CRM197 protein conjugate antigen | B970MQT365 | structurallyDiverse |