• Siamycin I (9CI)
• 164802-68-0
• C97H131 N23 O26 S4
• 2163.47654
• .

• Spirostan-2,12-dione,3,6-dihydroxy-, (3b,5a,6b,25R)- (9CI)
• 219493-85-3
• C27H40 O6
• .

• Sapecin B (9CI)
• 149660-08-2
• C169H279 N53 O47 S6
• .

• Sulfuric acid,potassium zinc salt (2:2:1) (8CI,9CI)
• 13932-17-7
• H2O4 S . K . 1/2 Zn
• 237-703-9
• 335.7118
• .

• Spiro[1H-isoindole-1,9'-[9H]xanthen]-3(2H)-one,2-(2-chlorophenyl)-3',6'-bis(diethylamino)-
• 51750-84-6
• C34H34 Cl N3 O2
• 257-377-1
• 552.10566
• .

• Sodium fluoroaluminate
• 15096-52-3
• AlF₆Na₃
• 239-148-8
• 209.94
• .

• Stannane, octyl-
• 15231-57-9
• C8H20 Sn
• 0
• .

• Selar PV 3426
• 25750-23-6
• 0
• .

• Spiro[6,16-(epithiopropanoxymethano)-7,13-imino-12H-1,3-dioxolo[7,8]isoquino[3,2-b][3]benzazocine-20,1'(2'H)-isoquinolin]-19-one,5-(acetyloxy)-3',4',6,6a,7,13,14,16-octahydro-6',8,14-trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-,(1'R,6R,6aR,7R,13S,14S,16R)-
• 114899-77-3
• C₃₉H₄₃N₃O₁₁S
• 761.91
• .

• Siloxanes andSilicones, di-Me, 3-hydroxypropyl Me, Me 3-(2-oxiranylmethoxy)propyl, etherswith polyethylene-polypropylene glycol mono-Me ether, reaction products withformaldehyde-phenol polymer
• 160274-07-7
• .

• Silica, mixt. withdi-Me siloxanes
• 145538-87-0
• O2Si .
• .

• Spiro[9H-benzo[a]fluorene-9,2'(3'H)-furo[3,2-b]pyridin]-11(1H)-one,2,3,3'a,4,4',4a,5,5',6,6',6a,6b,7,7',7'a,8,11a,11b-octadecahydro-3-hydroxy-3',6',10,11b-tetramethyl-,(2'S,3S,3'R,3'aS,4aS,6'S,6aS,6bS,7'aR,11aS,11bS)-
• 142631-44-5
• C27H41 N O3
• .

• Sulfonyl chlorides,C12-18-alkane
• 100403-67-6
• 309-614-6
• .

• Silane, trimethyl[[(6a)-A'-neogammacer-17(21)-en-6-yl]oxy]-(9CI)
• 10019-13-3
• C33H58 O Si
• .

• Sanguinarine nitrate
• 4752-86-7
• C₂₀H₁₄N₂O₇
• 225-276-1
• 394.33
• .

• Solvent naphtha
• 64742-94-5
• C9
• 265-198-5
• 0
• .

• Spiro[benzofuran-2(3H),1'(2'H)-phenanthrene]-4,5,7'-triol,3',4',4'a,4'b,5',6',7',8',8'a,9',10',10'a-dodecahydro-2',4'b,7,8',8',10'a-hexamethyl-,(1'S,2'S,4'aR,4'bS,7'S,8'aR,10'aR)-
• 71106-25-7
• C27H40 O4
• 0
• .

• Stibine,tris(2-methylphenyl)-
• 23822-15-3
• C21H21 Sb
• 395.1514
• .

• Spiro[benzofuran-2(3H),1'(2'H)-phenanthrene]-4,5-dione,3',4',4'a,4'b,5',6',7',8',8'a,9',10',10'a-dodecahydro-7'-hydroxy-2',4'b,7,8',8',10'a-hexamethyl-,(1'S,2'S,4'aR,4'bS,7'S,8'aR,10'aR)-
• 71103-05-4
• C27H38 O4
• 0
• .

• Steinapol SBF 12
• 26838-05-1
• C₁₆H₂₉NaO₇S
• 248-030-5
• 0
• .

• Somatostatin-28(sheep), 22-D-tryptophan- (9CI)
• 77910-00-0
• C137H207 N41 O39 S3
• 0
• .

• Spiro[cyclohexane-1,9'-[3,7]diazabicyclo[3.3.1]nonane],3'-(1-methylethyl)-7'-(2-methylpropyl)-
• 126825-36-3
• C19H36 N2
• 0
• .

• Secretin (swine),4-L-alanine- (9CI)
• 64610-22-6
• C131H222 N44 O41
• 0
• .

• Substance P,5-[N-[3-[[4-[(3-aminopropyl)amino]butyl]amino]propyl]-L-glutamine]- (9CI)
• 141231-59-6
• C73H121 N21 O13 S
• 0
• .

• Spiro[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dione,6-fluoro-2,3-dihydro-2-methyl-, (2R,4S)-
• 102916-95-0
• C12H11 F N2 O3
• 250.2257
• .

• Silanamine,N-silyl-N-(silyloxy)- (9CI)
• 26858-94-6
• H9N O Si3
• .

• Spiro[5.5]undec-2-ene,3,7,7-trimethyl-11-methylene-, (6R)-
• 18431-82-8
• C15H24
• 204.35106
• .

• Silane,trimethyl(methylthio)-
• 3908-55-2
• C₄H₁₂SSi
• 223-466-9
• 120.2886
• .

• Silver, isotope of mass104
• 15116-79-7
• Ag
• 104
• .

• Sulfuric acid, ammoniumyttrium(3+) salt (2:1:1) (9CI)
• 97375-22-9
• H3N . 2 H2 O4 S . Y
• 306-678-7
• 299.06951
• .

• Stannane,tributyl(nonylphenoxy)- (9CI)
• 93951-53-2
• C27H50 O Sn
• 300-673-3
• 509.3953
• .

• Sulfide
• 18496-25-8
• S
• 0
• .

• Spiro[benzo[4,5]cyclodeca[1,2-b]furan-12(2H),2'-oxiran]-2-one,8,9,13-tris(acetyloxy)-4-chloro-1,3a,4,5,8,8a,9,10,11,12a,13,13a-dodecahydro-13a-hydroxy-1,8a-dimethyl-5-methylene-,(1R,2'R,3aR,4S,6E,8S,8aR,9S,12aS,13S,13aR)-rel-(+)-
• 121769-82-2
• C26H33 Cl O10
• .

• Spiro[4H,8H-[1,4]dioxepino[2,3-g]indole-8,7'(8'H)-[5H,6H-5a,9a](iminomethano)[1H]cyclopent[f]indolizine]-9,10'(10H)-dione,2',3',8'a,9'-tetrahydro-4,4,8',8',11-pentamethyl-1'-methylene-,(5'aS,7'R,8'aS,9'aR)- (9CI)
• 125439-04-5
• C28H33 N3 O4
• .

• Silanol,1-[(2-hydroxyethoxy)methyl]-
• 27867-43-2
• C3H10 O3 Si
• .

• Spiro[6H-cyclohepta[b]furan-6,2'(3'H)-furan]-2,4(5H,7H)-dione,3'-(acetyloxy)-4',5',8,8a-tetrahydro-3,5',7-trimethyl-, (2'S,3'S,5'S,7S,8aS)-(9CI)
• 153660-06-1
• C17H22 O6
• .

• Samarium sulfide
• 12067-22-0
• S₃Sm₂
• 235-076-6
• 396.92
• .

• Spiro[8H,21bH-3a,21a-(epoxyethano)-10,12-methano-17H,18H-furo[2',3':10,11]oxireno[8,9][1,6]dioxacyclohexadecino[3,4-d][1]benzopyran-11(12H),2'-oxirane]-2,8,20(3H,20aH)-trione,10,10a,13a,16-tetrahydro-3-hydroxy-10a,15-dimethyl-,(2'S,3aR,10R,10aS,12R,13aR,17aR,21aS,21bR)- (9CI)
• 102852-51-7
• C29H32 O11
• 0
• .

• Sulfuric acid,mono(2-ethylhexyl) ester, ammonium salt (1:1)
• 70495-37-3
• C8H18 O4 S . H3 N
• 274-625-4
• 227.32164
• .

• Stigmasta-7,9(11),20(22)-trien-21-oicacid, 3-(b-D-glucopyranosyloxy)-16,23,24,28-tetrahydroxy-,g-lactone, (3b,5a,16a,24x)- (9CI)
• 152464-81-8
• C35H52 O11
• .

• Silane,(chlorophenyl)triethoxy- (9CI)
• 28106-60-7
• C12H19 Cl O3 Si
• .

• Sulfur tetrafluoride
• 7783-60-0
• SF₄
• 232-013-4
• 108.06
• .

• Somatostatin-28 (sheep)
• 73032-94-7
• C137H207 N41 O39 S3
• 3148.60
• .

• Stigmast-4-ene-6,8,15,16-tetrol,3-[(2-O-methyl-b-D-xylopyranosyl)oxy]-29-(b-D-xylopyranosyloxy)-,15-(hydrogen sulfate), sodium salt (1:1), (3b,6b,15a,16b,24R)-
• 156398-66-2
• C40H68 O17 S . Na
• .

• Spiro[1,3-dioxolane-2,8'(9'H)-[7H-7,9a]methanobenz[a]azulene](8CI,9CI)
• 171-00-6
• C17H16 O2
• 252.31
• .

• Sulfur,(2-chloro-1,1,2,2-tetrafluoroethyl)pentafluoro-, (OC-6-21)- (9CI)
• 646-63-9
• C2Cl F9 S
• 0
• .

• Silane,diethoxydiethyl-
• 5021-93-2
• C8H20 O2 Si
• 225-706-8
• 176.33
• .

• Selenophene
• 288-05-1
• C4H4 Se
• 131.03
• .

• Silanol,1,1,1-triethyl-, 1-acetate
• 5290-29-9
• C8H18 O2 Si
• 226-128-9
• 174.31
• .

• Stannane,dibutylbis[(1-oxodecyl)oxy]- (9CI)
• 3465-75-6
• C28H56 O4 Sn
• 222-417-9
• 575.53
• .