• Sulfuric acid,monohexyl ester, potassium salt (1:1)
• 54649-24-0
• C6H14 O4 S . K
• 259-276-8
• 220.32832
• .

• Sulfurous acid,bis(2-phenylethyl) ester
• 24281-43-4
• C16H18 O3 S
• 290.3773
• .

• Salmeterol-fluticasone propionate mixt.
• 136112-01-1
• C₅₀H₆₈F₃NO₉S
• 0
• .

• Silicic acid (H4O4Si)
• 10193-36-9
• H₄O₄Si
• 233-477-0
• 96.13
• .

• Sulfonium,(3-amino-3-carboxypropyl)dimethyl-, bromide (1:1)
• 2766-51-0
• C6H14 N O2 S . Br
• 220-440-9
• 244.1499
• .

• Silsesquioxanes, Ph,ethoxy-terminated, polymers with ethylene glycol, terephthalic acid andtrimethylolpropane
• 118249-63-1
• 0
• .

• Scrophularia nodosa,ext.
• 90106-65-3
• 290-289-1
• 0
• .

• Silicic acid, aluminumsilver salt
• 63939-08-2
• AgAlO6Si2
• 264-569-9
• 287.017138
• .

• Stannane,azidotriphenyl-
• 1158-51-6
• C18H15 N3 Sn
• 392.0418
• .

• Sulfamic acid,S,S'-1,7-heptanediyl ester
• 96892-57-8
• C7H18 N2 O6 S2
• 0
• .

• Stibine oxide,dihydroxy(3-nitrophenyl)-
• 5430-17-1
• C6H6 N O5 Sb
• 0
• .

• Sulfoxonium,dodecyldimethyl- (9CI)
• 28274-73-9
• C14H31 O S
• .

• Silicic acid (H4SiO4),tetrakis(2-hydroxyethyl) ester
• 17622-94-5
• C8H20 O8 Si
• 241-598-5
• 272.37
• .

• Sodium 1-(carboxymethyl)-4,5-dihydro-1-(2-hydroxyethyl)-2-nonyl-1H-imidazolium dodecyl sulphate
• 14482-97-4
• C₂₈H₅₅N₂NaO₇S
• 238-480-0
• 854.20565
• .

• Spiro[9H-benzo[a]fluorene-9,2'(3'H)-furo[3,2-b]pyridin]-3-ol,1,2,3,3'a,4,4',5',6,6',6a,6b,7,7',7'a,8,11,11a,11b-octadecahydro-3',6',10,11b-tetramethyl-,(2'R,3S,3'R,3'aS,6'S,6aS,6bS,7'aR,11aS,11bR)-
• 4449-51-8
• C₂₇H₄₁NO₂
• 411.69
• .

• Silica,[(dimethylsilyl)oxy]-modified
• 102262-28-2
• 0
• .

• Schorl(Na[Al6Fe3(BO3)3(OH)4(SiO3)6])
• 12424-45-2
• Al6B3 Fe3 H4 O31 Si6 . Na
• .

• Streptamine, 2-deoxy-
• 2037-48-1
• C6H14 N2 O3
• 324.01
• .

• Sulfoxylic acid,dipropyl ester
• 3359-70-4
• C6H14 O2 S
• 150.2392
• .

• Spiro[imidazo[1,2-a]pyridine-3(2H),4'-piperidin]-2-one,1'-[3-(3-chloro-10,11-dihydro-5H-dibenz[b,f]azepin-5-yl)propyl]hexahydro-
• 89419-40-9
• C28H35 Cl N4 O
• 479.06
• .

• Spiro[cyclohexane-1,4'(3'H)-[1H-7,9a]methanocyclohepta[c]pyran]-1'-one,5',6,9'-tris(acetyloxy)-2-[(acetyloxy)methyl]hexahydro-3,3-dimethyl-8'-methylene-,(1R,2R,4'aS,5'R,6S,7'S,9'R,9'aS)-
• 152985-30-3
• C28H38 O10
• .

• Sulfur, mol. (S8)
• 10544-50-0
• S8
• 231-722-6
• 0
• .

• Sarafotoxin S 6b(reduced) (9CI)
• 116303-65-2
• C110H163 N27 O34 S5
• 2563.92
• .

• Stannane,bromotripropyl-
• 2767-61-5
• C9H21 Br Sn
• 327.90
• .

• Silicic acid (H4SiO4),barium zirconium(4+) salt (3:2:2)
• 13708-67-3
• Ba. 3/2 H4 O4 Si . Zr
• 237-248-6
• 0
• .

• Spiro[9H-benzo[a]fluorene-9,2'(3'H)-furo[3,2-b]pyridin]-5(6H)-one,1,2,3,3'a,4,4',4a,5',6',6a,6b,7,7',7'a,8,11,11a,11b-octadecahydro-3-hydroxy-3',6',10,11b-tetramethyl-,(2'R,3S,3'R,3'aS,4aS,6'S,6aR,6bS,7'aR,11aS,11bR)-
• 139893-27-9
• C27H41 N O3
• 0
• .

• STREPTOMYCIN, FROM IMIDOYLDIHYDRO-,SESQUISULFATE
• 10225-46-4
• C₂₂H₄₂N₈O₁₂
• 0
• .

• Somatostatin (sheep),4-(4-amino-L-phenylalanine)-8-D-tryptophan- (9CI)
• 79232-04-5
• C79H102 N18 O19 S2
• 0
• .

• Subtilin (8CI,9CI)
• 1393-38-0
• C148H227 N39 O38 S5
• 3321.44
• .

• Spiro[cyclohexane-1,1'-[1H]indene]-4,7'-diol,2',3'-dihydro-5'-methoxy-, cis-
• 64052-90-0
• C15H20 O3
• 248.3175
• .

• Spiro[1H-isoindole-1,2'-pyrrolidin]-3(2H)-one,1'-methyl- (9CI)
• 135626-84-5
• C12H14 N2 O
• 0
• .

• Sulfotrinaphthylenofuran(9CI)
• 94335-68-9
• C30H14 O14 S3
• 0
• .

• Stannane,tris(dodecylthio)methyl-
• 52165-03-4
• C37H78 S3 Sn
• 257-696-6
• 737.92022
• .

• Solanid-5-ene-3,12-diol,(3b,12a)-
• 79-58-3
• C27H43 N O2
• 413.71
• .

• Stigmast-14-ene-3,16-diol,(3b,5a,16a,24S)- (9CI)
• 140147-34-8
• C29H50 O2
• 0
• .

• Sodium cyclamate
• 139-05-9
• C₆H₁₂NNaO₃S
• 205-348-9
• 201.22
• .

• Silane,bis[(methylsilyl)ethynyl]- (9CI)
• 27873-41-2
• C6H12 Si3
• .

• Silane,1,2-ethanediylbis- (9CI)
• 4364-07-2
• C2H10 Si2
• 90.27
• .

• Sarpagan,6,17-epoxy-11-methoxy-, (6b,16S)- (9CI)
• 23172-98-7
• C20H22 N2 O2
• 0
• .

• Sulfuric acid,monopentyl ester, ammonium salt (1:1)
• 93982-33-3
• C5H12 O4 S . H3 N
• 301-222-3
• 185.2419
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,6'-[ethyl(4-methylphenyl)amino]-2'-(phenylamino)-
• 63430-54-6
• C35H28 N2 O3
• 264-141-1
• 524.60842
• .

• Somatostatin-20 (swine)(9CI)
• 90986-55-3
• C107H159 N31 O27 S2
• 0
• .

• Spiro[furan-2(3H),2'(3'H)-furo[3,2-b]furan],3'-bromo-5-(1-bromopropyl)-5'-(1-bromo-2-propynyl)hexahydro- (9CI)
• 103955-75-5
• C15H19 Br3 O3
• .

• Sarkomycin
• 11031-48-4
• C₇H₈O₃
• 140.15
• .

• Stigmasta-5,25-dien-7-one,3-hydroxy-, (3b)-
• 151345-08-3
• C29H46 O2
• .

• Sperm-activatingpeptide H 2 (Hemicentrotus pulcherrimus egg jelly coat) (9CI)
• 76901-59-2
• C38H57 N11 O14
• 0
• .

• Spiro[cholestane-3,3'-[1,4,2]dioxazolidine](9CI)
• 123542-81-4
• C28H49 N O2
• .

• Stannane, tetrachloro-,hydrate (1:5)
• 10026-06-9
• SnCl₄^.5(H₂O)
• 231-588-9
• 350.59
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-, potassium salt (1:2)
• 6493-54-5
• C20H10 Br2 O5 . 2 K
• .

• Spiro[furan-2(5H),2'-[2H]furo[3,2-c]pyrrolo[1,2-a]azepin]-5-one,1'-ethyl-1',3'a,4',5',6',8',9',10',10'a,10'b-decahydro-4-methyl-8'-[(2R,4R)-tetrahydro-4-methyl-5-oxo-2-furanyl]-,(1'R,2S,3'aS,8'R,10'aR,10'bS)-rel-(-)-
• 69772-72-1
• C22H31 N O5
• 389.4852
• .