• Sodium hydroxide
• 1310-73-2
• NaOH
• 215-185-5
• 40.00
• .

• Sulfuric acid,zirconium(4+) salt (2:1)
• 14644-61-2
• Zr(SO₄)₂
• 238-694-4
• 283.34 .
• .

• Silicic acid (H6Si2O7), magnesium salt (1:3)
• 20405-62-3
• H6O7 Si2 . 3 Mg
• 148.9987
• .

• Sibutramine hydrochloride anhydrous
• 84485-00-7
• C₁₇H₂₇Cl₂N
• 316.31
• .

• Spherical nickel hydroxide
• 37280-71-0
• H₂NiO₂
• 92.70808
• .

• Sesquiterpenes andSesquiterpenoids, citronella-oil
• 73049-78-2
• 0
• .

• Sodium stearate
• 822-16-2
• C₁₈H₃₅NaO₂
• 212-490-5
• 306.46
• .

• Secretin
• 17034-35-4
• C₁₃₀H₂₂₀N₄₄O₄₁
• 241-105-3
• 3055.43
• .

• Silica gel
• 63231-67-4
• H2O3Si
• 231-545-4
• 78.09958
• .

• Silicicacid (H2SiO3), lead(2+) salt (1:1)
• 10099-76-0
• H2O3 Si . Pb
• 233-246-4
• 283.28
• .

• Spiro[furo[3,4-b]pyridine-5(7H),4'-piperidin]-7-one,hydrochloride (1:2)
• 936626-74-3
• C₁₁H₁₄Cl₂N₂O₂
• 277.15
• .

• Sulfoxylic acid,mono[[[5-[(3-amino-4-hydroxyphenyl)diarsenyl]-2-hydroxyphenyl]amino]methyl]ester, sodium salt (1:1)
• 457-60-3
• C13H14 As2 N2 O4 S . Na
• 207-273-7
• 466.17
• .

• Spiro[1H-7,9a-methanocyclohepta[c]pyran-4(3H),1'-[3]cyclohexene]-6'-carboxaldehyde,9-(acetyloxy)-4a,5,6,7,8,9-hexahydro-5',5'-dimethyl-8-methylene-1,2'-dioxo-,(1'S,4aS,6'R,7R,9R,9aS)-
• 230967-75-6
• C22H26 O6
• .

• Stigmastane, (5a)-
• 62446-14-4
• C29H52
• 400.72
• .

• Spiro[1H,4H-2,5-dioxacyclonona[3,4]cyclobut[1,2-c]acenaphthylene-6(5aH),2'-oxiran]-4-one,5b,7,8,11,12,12a,13,14,14a,14b-decahydro-1,1,3,10-tetramethyl- (9CI)
• 114933-19-6
• C24H32 O4
• .

• sulfonatooxyethane; triethyl-(2-octanoyloxyethyl)azanium
• 98072-08-3
• C₁₈H₃₉NO₆S
• 308-458-6
• 397.57036
• .

• S-Bioallethrin
• 28434-00-6
• C₁₉H₂₆O₃
• 249-013-5
• 302.45
• .

• Silane,trichloropentyl-
• 107-72-2
• C5H11 Cl3 Si
• 203-515-0
• 205.60
• .

• Sulfamide,N,N-diethyl-N'-(1,2,3,4,4a,5,10,10a-octahydro-6-hydroxy-1-propylbenzo[g]quinolin-3-yl)-,monohydrochloride, [3S-(3a,4aa,10ab)]- (9CI)
• 97805-50-0
• C20H33 N3 O3 S . Cl H
• 0
• .

• Solanid-5-en-3-ol, (3b)-
• 80-78-4
• C27H43 N O
• 201-309-5
• 397.64
• .

• Silver,(2,4-pentanedionato-kO2,kO4)-
• 15525-64-1
• C5H7 Ag O2
• 239-568-1
• 206.98
• .

• Silane,fluorotrimethyl-
• 420-56-4
• C3H9 F Si
• 206-997-0
• 92.19
• .

• Silicic acid (H2Si2O5),aluminum salt (3:2) (9CI)
• 12325-20-1
• Al. 3/2 H2 O5 Si2
• .

• Silane,bis(2-silylethenyl)-
• 27804-56-4
• C4H12 Si3
• .

• Spiro[isobenzofuran-4(1H),4'(3'H)-[1H-7,9a]methanocyclohepta[c]pyran]-1,1',9'(4'aH)-trione,decahydro-7a-methyl-8'-methylene-, (3aS,4R,7'S,7aR,9'aR)- (9CI)
• 150527-32-5
• C20H24 O5
• .

• Sorbitan, tridocosanoate
• 93980-59-7
• C72H138O8
• 301-037-8
• 1131.86132
• .

• Salmolysin (9CI)
• 116469-82-0
• 0
• .

• Silicic acid (H4SiO4),lithium salt (9CI)
• 63985-45-5
• H4O4 Si . x Li
• 89.9657
• .

• Sodium,(1,1,3,3-tetracyanoallyl)- (8CI)
• 22604-10-0
• C7H N4 Na
• 164.11
• .

• Sandramycin (9CI)
• 100940-65-6
• C60H76 N12 O16
• 0
• .

• Silane,butyltrimethoxy-
• 1067-57-8
• C₇H₁₈O₃Si
• 213-936-1
• 178.30
• .

• Silane,trichloro(1,2-dibromoethyl)-
• 4170-50-7
• C2H3 Br2 Cl3 Si
• 224-031-6
• 321.3
• .

• Somatostatin
• 38916-34-6
• C₇₆H₁₀₄N₁₈O₁₉S₂
• 254-186-5
• 1637.87816
• .

• Serine,O-(phenylmethyl)-, phenylmethyl ester, hydrochloride (9CI)
• 21948-10-7
• C17H19 N O3 . Cl H
• 285.34
• .

• Silicic acid (H4SiO4),bis(2-ethylbutyl) bis(2-ethylhexyl) ester (7CI,8CI,9CI)
• 10143-57-4
• C28H60 O4 Si
• 0
• .

• SCR157
• 95040-85-0
• C₁₈H₁₈O₂
• 0
• .

• Sodium, (phenylmethyl)-
• 1121-53-5
• C7H7 Na
• 214-332-0
• 114.12
• .

• Silanamine,1,1,1-trimethyl-N-(trimethylsilyl)-, germanium(2+) salt (2:1)
• 55290-25-0
• C6H19 N Si2 . 1/2 Ge
• 393.41
• .

• Stannane,trichlorooctyl-
• 3091-25-6
• C8H17 Cl3 Sn
• 221-435-4
• 338.29
• .

• SUFENTANIL CITRATE
• 60561-17-3
• C₂₂H₃₀N₂O₂S . C₆H₈O₇
• 262-295-4
• 578.74
• .

• Sorangicin A,(37Z,39E)- (9CI)
• 119324-27-5
• C47H66 O11
• .

• Selenodiarsenous acid((H2AsOSe)2Se) (9CI)
• 128389-77-5
• As2H4 O2 Se3
• .

• Spiro[4.5]dec-6-en-8-one,9-hydroxy-6,10-dimethyl-2-(1-methylethenyl)- (9CI)
• 117407-01-9
• C15H22 O2
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',4',5',6'-tetrahydroxy-
• 2103-64-2
• C20H12 O7
• 218-272-6
• 364.31
• .

• Sodium dihydrogenorthophosphate
• 7558-80-7
• NaH₂PO₄
• 231-449-2
• 119.98
• .

• Silane,trichloroheptyl-
• 871-41-0
• C7H15 Cl3 Si
• 212-807-7
• 233.64
• .

• Stannane,chlorotris(4-methylphenyl)-
• 32538-28-6
• C21H21 Cl Sn
• 427.55
• .

• Silanol,1-methyl-1,1-diphenyl-
• 778-25-6
• C13H14 O Si
• 212-293-4
• 214.36
• .

• Synephrine
• 94-07-5
• C₉H₁₃NO₂
• 202-300-9
• 167.23
• .

• Stigmasta-7,9(11),20(22)-trien-21-oicacid, 3,16,23,24,28-pentahydroxy-, 21,23-lactone, (3b,5a,16a,24x)- (9CI)
• 151481-58-2
• C29H42 O6
• .