• Styrene, allyl alcohol, allyl benzoate polymer
• 70776-41-9
• C₂₁H₂₄O₃
• 0
• .

• Sperm-activatingpeptide A (Glyptocidaris crenularis egg jelly coat reduced),2-L-phenylalanine-5-L-glutamic acid-7-L-lysine- (9CI)
• 140653-60-7
• C44H71 N11 O12 S2
• 0
• .

• Silane,tris[(1,1-dimethyl-2-propyn-1-yl)oxy]methyl-
• 83817-71-4
• C16H24 O3 Si
• 280-972-2
• 292.44546
• .

• Silanediol,1-methyl-1-phenyl-
• 3959-13-5
• C₇H₁₀O₂Si
• 223-562-0
• 154.2386
• .

• Spiro[4.6]undecane-2-carboxylicacid, sodium salt (1:1)
• 112523-75-8
• C12H20 O2 . Na
• 218.2678
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-bis(dimethylamino)-5(or 6)-isothiocyanato-
• 107347-53-5
• C25H21 N3 O3 S
• 443.52
• .

• Sulfuric acid, ammoniumneodymium(3+) salt (2:1:1) (8CI,9CI)
• 21995-34-6
• H3N . 2 H2 O4 S . Nd
• 244-704-8
• 354.40366
• .

• Selenonium, trimethyl-(8CI,9CI)
• 25930-79-4
• C3H9 Se
• 124.08
• .

• Silane,dodecyldiethoxymethyl-
• 60317-40-0
• C17H38 O2 Si
• 262-170-4
• 302.57
• .

• Spiro[2H-benzimidazole-2,1'-cyclohexane],1,3-dihydro-
• 3190-03-2
• C12H16 N2
• .

• Solanid-5-en-3-ol,28-oxide, (3b)-(9CI)
• 162147-79-7
• C27H43 N O2
• .

• Spiro[furan-3(2H),7'(8'H)-[1H]naphtho[1,8a-c]furan]-2,3'(3'aH)-dione,5-(3-furanyl)octahydro-10'-hydroxy-8'-methyl-,(3R,3'aR,5S,6'aS,8'R,10'R,10'aR)- (9CI)
• 64719-81-9
• C20H24 O6
• 0
• .

• Sodium titanium oxide
• 51142-87-1
• NaOTi+₃
• 257-010-5
• 310.58537
• .

• Silane,trichloro[3-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethoxy]propyl]-
• 15538-93-9
• C₆H₆Cl₃F₇OSi
• 239-589-6
• 361.54
• .

• Streptomycin calcium chloride
• 15493-35-3
• C₂₁H₃₉N₇O₁₂•CaCl₂
• 692.65
• .

• Sulfuric acid fuming
• 8014-95-7
• H₂O₇S₂
• 231-639-5
• 178.14168
• .

• Sulfuric acid, monododecyl ester, compd. with 1-amino-2-propanol (1:1)
• 21142-28-9
• C₁₅H₃₅NO₅S
• 244-238-5
• 313.45394
• .

• sodium; furan-2,5-dione; prop-2-enoate
• 52255-49-9
• C₇H₅NaO₅
• 762.24
• .

• Spiro[1-azabicyclo[2.2.2]octane-3,5'-[1,3]oxathiolane],2'-methyl-, (2'R,3S)-rel- (9CI)
• 107220-27-9
• C10H17 N O S
• 0
• .

• Spiro[furan-3(2H),8'(9'H)-[4H-3,5a]methanonaphth[2,1-b]oxepin]-4',5(4H)-dione,decahydro-3'-methyl-, (3R,3'S,5'aS,7'aS,11'aR,11'bS)- (9CI)
• 120216-78-6
• C19H26 O4
• .

• Samarium, isotope ofmass 150
• 14907-33-6
• Sm
• 0
• .

• Sulfide (35S2-)
• 26041-18-9
• S
• 34.9701
• .

• Succinylacetone
• 51568-18-4
• C₇H₁₀O₄
• 158.15
• .

• Spiro[benzofuran-2(3H),1'-cyclohexan]-5-ol,2',6'-dimethyl-2'-[(1E)-4-methyl-1,3-pentadien-1-yl]-, (1'R,2'R,6'S)-
• 148225-32-5
• C21H28 O2
• .

• Selenide (Se22-)(8CI,9CI)
• 25778-65-8
• Se2
• .

• Selenium, 4-(3-(2,6-bis(1,1-dimethylethyl)-4H-tellurin-4-ylidene)-1-propenyl)-2,6-bis(1,1-dimethylethyl)-, perchlorate
• 115732-39-3
• C₂₉H₄₃SeTe·ClO₄
• 0
• .

• Silacyclohexane,1,1-dimethyl-
• 4040-74-8
• C7H16 Si
• 223-730-3
• 128.29
• .

• Spiro[9H-fluorene-9,4'-imidazolidine]-2',5'-dione,2,7-difluoro-
• 89391-50-4
• C15H8 F2 N2 O2
• 0
• .

• Sulfuric acid,ytterbium(3+) salt (3:2)
• 13469-97-1
• H2O4 S . 2/3 Yb
• 236-727-7
• 634.2678
• .

• Synthase,6,7-dimethyl-8-ribityllumazine
• 89287-46-7
• 0
• .

• Strontium, isotope ofmass 80
• 15701-15-2
• Sr
• 80
• .

• Selenothioperoxydiphosphoricacid ([(HO)2P(S)]2Se2), tetraphenyl ester (8CI,9CI)
• 14366-39-3
• C24H20 O4 P2 S2 Se2
• .

• Sulfonium,[2-[(diethoxyphosphinyl)thio]ethyl]ethylmethyl-, iodide (1:1)
• 64036-99-3
• C9H22 O3 P S2 . I
• 400.2774
• .

• Sinoacutin
• 4090-18-0
• C₁₉H₂₁NO₄
• 327.3743
• .

• Spiro[3H-benz[e]indene-3,1'-cyclopentane],3'-[(1R,4R)-4-ethyl-1,5-dimethylhexyl]dodecahydro-2',9a-dimethyl-,(1'S,2'S,3'R,3aR,9aS,9bS)-
• 127036-98-0
• C29H52
• .

• Sorbitan,octadecanoate (2:3)
• 51938-44-4
• C₅₄H₁₀₈O₁₉
• 257-529-7
• 0
• .

• Silanedicarbonitrile,dimethyl-
• 5158-09-8
• C4H6 N2 Si
• 225-932-7
• 110.18934
• .

• s-Triazine,hexahydro-1,3,5-tris(2,2,3-trichloropropionyl)- (8CI)
• 30805-20-0
• C12H12 Cl9 N3 O3
• 565.319
• .

• Semenogelin II (humanclone lVSRP-XXI precursor reduced) (9CI)
• 147338-31-6
• .

• Salivarygland-salivation stimulating peptide (Locusta migratoria) (9CI)
• 165689-40-7
• C79H118 N20 O25 S
• .

• Stannane,dibromodibutyl-
• 996-08-7
• C8H18 Br2 Sn
• 392.77
• .

• Sulfonium,[(2-hydroxy-5-nitrophenyl)methyl]dimethyl-, bromide (1:1)
• 28611-73-6
• C9H12 N O3 S . Br
• 249-105-5
• 294.17
• .

• Stibine, trimethyl-
• 594-10-5
• C₃H₉Sb
• 209-824-7
• 166.87
• .

• Sulfamic acid,1,2-ethanediyl ester (9CI)
• 60548-60-9
• C2H8 N2 O6 S2
• 0
• .

• Spiro[3H-indole-3,1'(5'H)-indolizine]-8'-propanoicacid, 8'-ethyl-1,2,2',3',6',7',8',8'a-octahydro-1-methyl-2-oxo-, methyl ester,(1'S,8'R,8'aS)- (9CI)
• 23185-53-7
• C22H30 N2 O3
• 0
• .

• Sulfamide,N,N'-dibutyl-
• 763-11-1
• C8H20 N2 O2 S
• 212-107-1
• 208.3216
• .

• Spiro[oxirane-2,7'(8'H)-[3H-4,8a]propano[1H-2]benzopyran]-3'-one,5'-(acetyloxy)-8'-[2-(3-furanyl)ethyl]tetrahydro-8'-hydroxy-4'-methyl-,(2R,4'S,4'aR,5'R,8'S,8'aS)- (9CI)
• 29461-24-3
• C22H28 O7
• 0
• .

• Substance P,1-de-L-arginine-2-de-L-proline-3-de-L-lysine-4-de-L-proline-6-(N,N-dimethyl-L-glutamine)-(9CI)
• 75401-11-5
• C43H64 N10 O9 S
• 0
• .

• Sulfamic acid,N-cyclohexyl-, calcium salt, hydrate (2:1:2)
• 5897-16-5
• C6H13 N O3 S . 1/2 Ca . H2 O
• 432.62
• .

• Stigmast-7-en-6-one,3-(benzoyloxy)-22-hydroxy-4-methyl-, (3b,4a,5a,22R)-
• 31077-78-8
• C37H54 O4
• 562.8223
• .