| 67774-74-7 | Scintiverse BD cocktail | C17H28 |
| 107-44-8 | Sarin. | C4H10FO2P |
| 20284-79-1 | senecioylcholine | C10H20 N O2 |
| 102568-43-4 | sulfosuccinimidyl 6-((4-azido-2-nitrophenyl)amino)hexanoate | C16H18 N6 O9 S |
| 129-63-5 | sodium acetrizoate | C9H5I3NNaO3 |
| 64012-00-6 | sodium 1,4-diethyl-9-methyl-6,10-dioxo-7,9-diazaspiro[4.5]dec-7-en-8-olate | C13H20 N2 O3 . Na |
| 127692-24-4 | Spiro[cyclohexane-1,2'(3'H)-imidazo[2,1-b]oxazole],6'-nitro- | C10H13 N3 O3 |
| 68608-63-9 | SODIUM CARBOXYMETHYLSTEARYLHYDROXY-ETHYL IMIDAZOLINIUM HYDROXIDE | C24H48ClN2NaO4 |
| 13759-87-0 | SAMARIUM BROMIDE | Br3Sm |
| 140437-49-6 | Spiro[2H-indene-2,2'-naphtho[1,2-d][1,3]- dioxol]-1(3H)-one,3,7,9'-trihydroxy- |
| 25168-73-4 | Sucrose stearate | C30H56O12 |
| 19912-83-5 | SPIRO[5.5]UNDECA-1,8-DIENE,1, | C15H24 |
| 100-79-8 | Solketal | C6H12O3 |
| 28640-49-5 | Spiro[bicyclo[4.2.1]nonane-9,2'-[1,3]dithiolane](8CI,9CI) | C11H18 S2 |
| 184885-07-2 | Stellettin C |
| 6803-17-4 | S-benzylglutathione | C17H23 N3 O6 S |
| 182003-91-4 | Stevastelin P |
| 6953-60-2 | S-ACETYLMERCAPTOSUCCINIC ANHYDRIDE | C6H6 O4 S |
| 167136-76-7 | Siloxanes and Silicones,di-Me, di-Ph, [[(3-hydroxypropyl)dimethylsilyl]oxy]-terminated, ethoxylated |
| 76030-33-6 | St 681 |
| 6404-46-2 | sodium 4-[(3-chloro-2-hydroxy-5-nitrophenyl)azo]-1H-naphtho[1,8-de]-1,2,3-triazine-6-sulphonate | C16H9 Cl N6 O6 S . Na |
| 57-92-1 | Streptomycin | C21H39N7O12 |
| 73322-71-1 | S-(P-AZIDOPHENACYL)GLUTATHIONE | C18H22 N6 O7 S |
| 121560-16-5 | Sandopan JA 36 |
| 2190-04-7 | STEARYLAMINE ACETATE | C18H39N•C2H4O2 |
| 14383-50-7 | sulfurothioate | O3S2 |
| 143-66-8 | Sodium tetraphenylboron | C24H20BNa |
| 16924-51-9 | SODIUM HEXAFLUOROSTANNATE (IV) | F6Sn . 2 Na |
| 154881-60-4 | Sumikaflex 480 |
| 19103-02-7 | S-330 | C16H12Cl4N6 |
| 64044-48-0 | Sodium stannate | H6Na2O6Sn |
| 137460-77-6 | sorocein A | C39H34O8 |
| 84396-34-9 | SS 554 | C32H58 O13 |
| 68214-27-7 | sodium diaquabis[salicylato(2-)-O1,O2]chromate(1-) | C14H12CrNaO8 |
| 191718-73-7 | see ã-Conotoxin P IIIE |
| 16589-24-5 | Synephrine tartrate | 2(C9H13NO2).C4H6O6 |
| 67827-90-1 | sodium glycerol 2-sulphonatododecanoate | C15H29NaO7S |
| 12650-28-1 | Silicic acid, barium salt | BaO3Si |
| 63800-37-3 | SEPIOLITE | H8Mg2O10Si3 |
| 90-02-8 | Salicylaldehyde | C7H6O2 |
| 147204-83-9 | self-incompatibility-associated protein S1, Petunia inflata |
| 54003-27-9 | Streptothricin | C19H34N8O8 |
| 84604-81-9 | sodium (4-hydroxyphenyl)[(phenylacetyl)amino]acetate | C16H15 N O4 . Na |
| 132173-07-0 | SR 31747 | C23H35Cl2N |
| 2125-34-0 | S-TRITHIANE-1,1,3,3,5,5-HEXAOXIDE | C3H6 O6 S3 |
| 63990-07-8 | sodium 1,2,3,4-tetramethyl-6,10-dioxo-7,9-diazaspiro[4.5]dec-7-en-8-olate | C12H18 N2 O3 . Na |
| 1420-36-6 | S-acetoacetylcoenzyme A | C25H40 N7 O18 P3 S |
| 57479-88-6 | sulmepride | C14H21 N3 O4 S |
| 57817-89-7 | Stevioside | C38H60O18 |
| 118436-57-0 | S-adenosyl-1,12-diamino-3-thio-9-azadodecane | C21H38 N8 O3 S |
| 146-84-9 | silver picrate | C6H3 N3 O7 . Ag |
| 14392-33-7 | Samarium147 | Sm |
| 75887-52-4 | SM 220 |
| 6102-28-9 | sodium N-tetradecyl-beta-alaninate | C17H35 N O2 . Na |
| 81295-38-7 | SAL I |
| 147684-10-4 | sodium (2R,3S,4S,5R)-6-({[(4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-heptadecafluoro-1-nonylundecyl)oxy](hydroxy)phosphoryl}oxy)-3,4,5-trihydroxy-1-oxohexan-2-olate (non-preferred name) | C26H36 F17 O9 P . Na |
| 4299-60-9 | Sulfisoxazole diolamine [USAN] | C11H13N3O3S |
| 502-85-2 | SODIUM 4-HYDROXYBUTYRATE | C4H8 O3 . Na |
| 143407-74-3 | sodium 7-[[1-(3-bromophenyl)cyclopentanecarbonyl]amino]-3-methyl-8-oxo -5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate | C20H21 Br N2 O4 S . Na |
| 35285-25-7 | Solenopsin A | C17H35 N |
| 89072-13-9 | SF-2185 |
| 84929-48-6 | Sanguinaria canadensis, ext. |
| 992-67-6 | S-but-2-enoylcoenzyme A | C25H40N7O17P3S |
| 1402-72-8 | Spiro[furan-3(2H),1'(3'H)-isobenzofuran]-2-aceticacid, 4,5-dihydro-4'-hydroxy-6'-methoxy-2-methyl-3',5-dioxo-, (1'R,2R)-rel- | C15H14 O8 |
| 534-69-0 | sinigrin | C10H17 N O9 S2 |
| 146834-60-8 | SPT14 protein |
| 96997-98-7 | sinpeinine A | C27H43 N O2 |
| 37309-04-9 | scorpion toxin II, Androctonus | C313H465 N89 O95 S8 |
| 97919-43-2 | S-acetyl-3-mercaptopropanoyl-coenzyme A | C26H42 N7 O18 P3 S2 |
| 38270-90-5 | Strontium Chloride, Sr-89 | Cl2Sr |
| 63990-20-5 | sodium 1-butyl-6,10-dioxo-7,9-diazaspiro[4.5]dec-7-en-8-olate | C12H18 N2 O3 . Na |
| 136039-99-1 | S-(6-purinyl)-N-acetylcysteine | C10H11 N5 O3 S |
| 3520-42-1 | SULFORHODAMINE B | C27H29N2O7S2.Na |
| 471-80-7 | Stevioside | C20H30O3 |
| 11067-82-6 | sodium tetrapropylenebenzenesulphonate | C18H30 O3 S . Na |
| 68239-69-0 | sodium 5-[(3-ethyl-3H-benzoxazol-2-ylidene)ethylidene]-4-oxo-3-phenyl-2-thioxoimidazolidine-1-acetate | C22H18N3NaO4S |
| 38155-06-5 | secretin (7-27) | C102H183N35O32 |
| 101651-75-6 | sodium {2-[3-(acetylamino)-2,4,6-triiodophenoxy]ethoxy}(phenyl)acetate | C18H16 I3 N O5 . Na |
| 4728-90-9 | Spiro[5.6]dodecan-7-one | C12H20O |
| 63844-42-8 | Spiro[1H-indene-1,4'-[4H]inden]-7-ol,1'-[(1R)-1,5-dimethylhexyl]-1',2',3',3'a,5,5',6,6',7,7',7a,7'a-dodecahydro-4,7'a-dimethyl-,(1R,1'R,3'aR,7S,7aS,7'aR)- (9CI) | C27H44 O |
| 20624-25-3 | Sodium diethyldithiocarbamate trihydrate | C5H10NNaS2.3(H2O) |
| 24702-30-5 | S-Benzyl-S-phenyl-N-tosylsulfilimine | C20H19 N O2 S2 |
| 37686-85-4 | S-(-)-TERGURIDE MALEATE SALT | C20H28N4O•C4H4O4 |
| 76274-62-9 | sodium 4-isothiocyanatobenzenesulfonate | C7H5 N O3 S2 . Na |
| 127166-41-0 | sodium (11E)-11-[2-(5,6-dimethyl-1H-benzimidazol-1-yl)ethylidene]-6,11-dihydrodibenzo[b,e]oxepine-2-carboxylate | C26H22 N2 O3 . Na |
| 12417-99-1 | SILVER ARSENIDE | Ag3As |
| 177-15-1 | Spiro[1,3-oxathiolane-2,1'-cyclohexane] | C8H14OS |
| 26837-33-2 | sodium 1-(carboxymethyl)-4,5-dihydro-1-(2-hydroxyethyl)-2-undecyl-1H-imidazolium hydroxide | C18H35 N2 O3 . H O . Na |
| 7601-89-0 | Sodium perchlorate(VII) | NaClO4 |
| 95998-72-4 | S-(4-nitrocarbobenzoxy)glutathione | C18H22 N4 O10 S |
| 587-49-5 | salfluverine | C14H10 F3 N O2 |
| 7789-66-4 | SILICON TETRABROMIDE | Br4Si |
| 10343-55-2 | Solvent Yellow 19 | C16H11CrN4O8S |
| 94138-71-3 | sodium 2-[[4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]phenyl]sulphonyl]ethyl sulphate | C17H17 Cl N2 O6 S2 . Na |
| 10040-45-6 | Sodium picosulfate | C18H13NNa2O8S2 |
| 91682-96-1 | STIGMATELLIN | C30H42 O7 |
| 146670-40-8 | SR 11237 | C24H28O4 |
| 40525-07-3 | scillabiose | C12H22O10 |
| 2551-62-4 | Sulfur hexafluoride | S F6 |
| 2481-94-9 | Solvent Yellow 56 | C16H19N3 |