• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2'-[(4-chlorophenyl)amino]-6'-(diethylamino)-3'-methyl-
• 52470-07-2
• C31H27 Cl N2 O3
• 257-940-1
• 511.01068
• .

• Sulfuric acid,mono(1-methylethyl) ester
• 6914-90-5
• C3H8 O4 S
• 230-021-2
• 140.15822
• .

• Sulfuric acid,mono(acetyl-9H-fluoren-2-ylazanyl) ester
• 16808-85-8
• C15H13 N O5 S
• 319.35
• .

• Silar (dentalcomposite) (9CI)
• 79586-00-8
• 0
• .

• Spiro[benzofuran-2(3H),1'-[2,5]cyclohexadiene]-2'-carboxylic acid,7-chloro-4-hydroxy-6'-methoxy-6-methyl-3,4'-dioxo-, methyl ester, (+)-
• 102580-39-2
• C17H13 Cl O7
• .

• Substance P,8-(4-benzoyl-L-phenylalanine)-
• 130409-05-1
• C70H102 N18 O14 S
• 0
• .

• Stannane, diphenyl-
• 1011-95-6
• C12H12 Sn
• 274.93
• .

• Spiro[5H,6H-5a,9a-(iminomethano)-1H-cyclopent[f]indolizine-7(8H),2'-[2H]indole]-3',5,10(1'H)-trione,2,3,8a,9-tetrahydro-8,8-dimethyl-, (2'R,5aR,8aS,9aR)-
• 23402-09-7
• C21H23 N3 O3
• 0
• .

• Spiro[3,6-dioxabicyclo[3.1.0]hexane-2,2'-[2H,5H-pyrano[3,2-c][1]benzopyran]-5'-one,4'-ethenyl-3',4'-dihydro-4',5,10'-trimethyl-, (2R,4'R)-
• 63893-03-8
• C20H20 O5
• .

• Silanol,(hydroxymethyl)- (9CI)
• 16777-76-7
• CH6 O2 Si
• .

• Sulfurous acid, dioctylester
• 35506-89-9
• C16H34 O3 S
• 252-599-5
• 306.50436
• .

• Silicon nitride
• 68034-42-4
• NSi
• 42.0922
• .

• Styrene, methyl methacrylate, methacrylic acid, 2-ethylhexyl acrylate polymer
• 28377-44-8
• C₂₈H₄₂O₆
• 0
• .

• Silicicacid (H4SiO4), disodium salt (7CI,8CI,9CI)
• 15457-97-3
• H4O4 Si . 2 Na
• 239-476-1
• 122.06324
• .

• Silane,dimethylbis(octadecyloxy)-
• 29043-70-7
• C38H80 O2 Si
• 249-385-9
• 597.1261
• .

• Spiro[9H-fluorene-9,4'-imidazolidine]-2',5'-dione,2-fluoro-
• 97677-19-5
• C15H9 F N2 O2
• 0
• .

• Silanamine,N-methyl-1,1,1-triphenyl-N-(phenylmethyl)-
• 80930-71-8
• C26H25 N Si
• 0
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetra(iodo-131I)-, disodiumsalt (9CI)
• 24359-63-5
• C20H4 Cl4 I4 O5 . 2 Na
• 211-183-3
• 1017.6363
• .

• Samarium arsenide(SmAs)
• 12255-39-9
• AsSm
• 235-506-2
• 225.2816
• .

• Silver, isotope of mass109
• 14378-38-2
• Ag
• 0
• .

• Spiro[bicyclo[2.2.1]heptane-2,2'-oxirane],3,3-dimethyl-
• 62318-94-9
• C10H16 O
• 263-505-7
• 152.23344
• .

• Spiro[naphthalene-2(1H),3'-pyrrolidine]-2',5'-dione,3,4-dihydro-1'-methyl-
• 109104-45-2
• C14H15 N O2
• 0
• .

• Suberylglycine
• 60317-54-6
• C₁₀H₁₇NO₅
• 231.2457
• .

• Silanamine,1-methyl-N-[[3-(2-propen-1-ylamino)propyl]silyl]-
• 25277-75-2
• C7H20 N2 Si2
• .

• Silicate(2-),hexachloro-, strontium (1:1)
• 52139-17-0
• Cl6Si . Sr
• 257-688-2
• 328.4235
• .

• Selenium chloride(SeCl2) (6CI,7CI,8CI,9CI)
• 14457-70-6
• Cl2Se
• 149.866
• .

• Spiro[1-azabicyclo[2.2.2]octane-3,5'-[1,3]oxathiolane],2'-methyl-, (2'R,3R)-rel-
• 107233-08-9
• C₁₀H₁₇NOS
• 199.3131
• .

• Serine,O-mannopyranosyl- (8CI,9CI)
• 25318-73-4
• C9H17 N O8
• .

• Sulfoximine (8CI,9CI)
• 14616-60-5
• H3N O S
• 0
• .

• Silver, isotope of mass110
• 14391-76-5
• Ag
• 109.9061
• .

• Silane,tris(pentyloxy)-
• 17907-97-0
• C15H34 O3 Si
• 241-853-0
• 290.51416
• .

• Stomach, ext.
• 84540-15-8
• 283-106-1
• 0
• .

• St 93
• 56360-29-3
• C₁₀H₁₃ClN₄O₃
• 0
• .

• Spiro[4.5]dec-6-en-8-one,6,10-dimethyl-2-(1-methylethenyl)-, (2R,5S,10R)-
• 54878-25-0
• C15H22 O
• 0
• .

• Sodium phosphate, NaH2(32)PO4
• 7635-45-2
• H₄NaO₄P
• 121.9929
• .

• Spinel (Mg(AlO2)2)
• 1302-67-6
• AlO2 . 1/2 Mg
• 215-105-9
• 0
• .

• Sulfuric acid,monooctadecyl ester, ammonium salt (1:1)
• 4696-46-2
• C18H38 O4 S . H3 N
• 225-161-6
• 367.58744
• .

• Selenocyanic acid,Se,Se'-[1,4-phenylenebis(methylene)] ester
• 85539-83-9
• C10H8 N2 Se2
• 314.1039
• .

• Steel, (JIS DFM)
• 77650-28-3
• 0
• .

• Sodium fluoride F 18
• 22554-99-0
• FNa
• 41.9882
• .

• Spiro[cyclohexane-1,4'(3'H)-[1H-7,9a]methanocyclohepta[c]pyran]-1',9'(4'aH)-dione,6-(acetyloxy)-2-[(acetyloxy)methyl]tetrahydro-3-(hydroxymethyl)-3-methyl-8'-methylene-,(1S,2R,3S,4'aS,6S,7'R,9'aS)- (9CI)
• 142465-71-2
• C24H32 O8
• .

• Silicic acid (H4SiO4),beryllium salt (1:2) (8CI,9CI)
• 15191-85-2
• Be. 1/2 H4 O4 Si
• 239-251-8
• 110.11
• .

• Stigmasta-5,25-dien-3-ol,(3b,24S)-
• 2364-23-0
• C29H48 O
• 412.6908
• .

• Somatoliberin (sheephypothalamus) (9CI)
• 94948-82-0
• C221H368 N72 O66 S
• 0
• .

• Spiro[1,3-dioxolane-2,9'-[1,4]methanonaphthalene](8CI,9CI)
• 1579-47-1
• C13H10 O2
• .

• Silane,(chloropropyl)trimethoxy-
• 25512-39-4
• C6H15 Cl O3 Si
• 247-060-6
• 198.72
• .

• Samarate(5-)-153Sm,[[[1,2-ethanediylbis[(nitrilo-kN)bis(methylene)]]tetrakis[phosphonato-kO]](8-)]-, pentasodium, (OC-6-21)- (9CI)
• 160369-78-8
• C6H12 N2 O12 P4 Sm . 5 Na
• 695.931668
• .

• Spiro[6,10-methanobenzocyclodecene-4(1H),2'-oxirane]-1,3,5,8,11,12-hexol,2,3,4a,5,6,7,8,11,12,12a-decahydro-9,12a,13,13-tetramethyl-,1,3,5,8,11,12-hexaacetate, (1S,2'R,3S,4aR,5R,6R,8S,11R,12R,12aS)-
• 30244-35-0
• C32H44 O13
• 0
• .

• Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-5-carboxylicacid, 3',6'-bis(acetyloxy)-3-oxo-
• 79955-27-4
• C25H16 O9
• 920.78
• .

• Spiro[1,3-dioxolane-2,3'-tricyclo[2.2.1.02,6]heptane](7CI,8CI,9CI)
• 3213-76-1
• C9H12 O2
• .