• Iron, compd. with rhenium (3:2)
• 12449-98-8
• Fe₃Re₂
• .

• Iridium, compd. with nickel (1:1)
• 12502-19-1
• IrNi
• .

• Isoquinolinium, 1-benzoyl-2-ethoxy-2-oxoethylide
• 50668-76-3
• C₂₀H₁₇NO₃
• .

• Iron(2+), dihydroxy-
• 12528-83-5
• FeH₂O₂
• .

• Indium, compd. with lead (1:1)
• 12532-47-7
• InPb
• .

• Indium, compd. with ytterbium (2:1)
• 12532-54-6
• In₂Yb
• .

• Iron sodium oxide
• 12612-43-0
• Fe.Na.O
• .

• Iodonium, phenyl-, 1-cyano-2-oxo-2-phenylethylide
• 50737-36-5
• C₁₅H₁₀INO
• .

• Iron carbonate hydroxide
• 12626-75-4
• Unspecified
• .

• Imidazo[1,2-a]pyridin-5(1H)-one, 8-benzoyl-
• 126360-83-6
• C₁₄H₁₀N₂O₂
• .

• Iron carbide
• 12640-64-1
• Unspecified
• .

• Isoquinoline, decahydro-2-methyl-4a-phenyl-, cis-
• 50790-97-1
• C₁₆H₂₃N
• .

• Imidodicarbonimidic diamide, N-butyl-,mono(4-methylbenzenesulfonate)
• 50791-93-0
• C₇H₈O₃S·C₆H₁₅N₅
• .

• Imidazo[4,5-d]imidazole-2,5(1H,3H)-dione,tetrahydro-1,3,4,6-tetrakis[(1-methylethoxy)methyl]-
• 508220-69-7
• C₂₀H₃₈N₄O₆
• .

• Iron lithium titanium oxide
• 12673-38-0
• Fe.Li.O.Ti
• .

• Iron zirconium sulfide
• 12680-00-1
• Unspecified
• .

• Iron, compd. with yttrium (4:1)
• 12689-97-3
• Fe₄Y
• .

• Iron nickel oxide
• 12707-85-6
• Fe.Ni.O
• .

• Iron boride carbide
• 12737-83-6
• Unspecified
• .

• Iron tungsten oxide
• 12771-04-9
• Fe.O.W
• .

• Iron, compd. with ytterbium (2:1)
• 12776-58-8
• Fe₂Yb
• .

• Indium, compd. with thallium (1:1)
• 12776-84-0
• InTl
• .

• Iron tin oxide
• 12777-79-6
• Fe.O.Sn
• .

• Iron magnesium manganese zinc oxide
• 12777-91-2
• Fe.Mg.Mn.O.Zn
• .

• Indium, compd. with silver (2:1)
• 12785-35-2
• AgIn₂
• .

• isopentadecanoic acid
• 50973-09-6
• C₁₅H₃₀O₂
• 256-870-9
• 242.4
• .

• Iron magnesium oxide
• 12789-35-4
• Fe.Mg.O
• .

• Iron yttrium oxide
• 12795-74-3
• Fe.O.Y
• .

• iron(3+) cyclo(glycyl-N~5~-acetyl-N~5~-oxidoornithyl-N~5~-acetyl-N~5~-oxidoornithyl-N~5~-acetyl-N~5~-oxidoornithylglycylseryl)
• 15134-70-0
• C₂₈H₄₄FeN₉O₁₃
• 770.5465
• .

• Isoquinoline, 1-[4-(4-nitrophenyl)-3,5-diphenyl-1H-pyrrol-2-yl]-
• 51039-60-2
• C₃₁H₂₁N₃O₂
• .

• Isoquinoline, 1-[3-(4-nitrophenyl)-4,5-diphenyl-1H-pyrrol-2-yl]-
• 51039-61-3
• C₃₁H₂₁N₃O₂
• .

• Imidazo[2,1-b]thiazole-5-methanol, 3,6-dimethyl-
• 130182-33-1
• C₈H₁₀N₂OS
• .

• Imidazo[2,1-b]quinazoline-2,5(1H,3H)-dione
• 13021-21-1
• C₁₀H₇N₃O₂
• .

• Iodonium, phenyl-, 2,3,5-tricyano-2,4-cyclopentadien-1-ylide
• 51062-50-1
• C₁₄H₆IN₃
• .

• Isoxazole, 5-(3-chlorophenyl)-3-(4-methylphenyl)-
• 76112-08-8
• C₁₆H₁₂ClNO
• .

• Isoxazole, 5-(3-chlorophenyl)-3-(4-methoxyphenyl)-
• 76112-09-9
• C₁₆H₁₂ClNO₂
• .

• Iodosyl nitrate
• 76122-09-3
• INO₄
• .

• Imidodicarbonimidic diamide, N-(2-furanylmethyl)-
• 7644-42-0
• C₇H₁₁N₅O
• .

• Isoquinoline, dimethyl-
• 76602-22-7
• C₁₁H₁₁N
• .

• Isoquinoline, trimethyl-
• 76602-23-8
• C₁₂H₁₃N
• .

• Isoquinoline,1,2,3,4-tetrahydro-6,7,8-trimethoxy-1-[(4-methoxyphenyl)methyl]-
• 7690-23-5
• C₂₀H₂₅NO₄
• .

• Isoquinoline, 3-(2-propenyloxy)-
• 7697-65-6
• C₁₂H₁₁NO
• .

• Imidazo[1,5-a]pyridine, 3-(4-methoxyphenyl)-
• 77250-68-1
• C₁₄H₁₂N₂O
• .

• isobutyl oleate, compound with sulphuric acid
• 7779-99-9
• C₂₂H₄₄O₆S
• 231-946-4
• 436.6462
• .

• iridium hexafluoride
• 7783-75-7
• F₆Ir
• 232-024-4
• 306.2107
• .

• Iron lithium sulfide
• 80341-49-7
• Unspecified
• .

• Isophane Insulin
• 8052-74-2
• .

• Isoxazolium, 2,5-dimethyl-, methyl sulfate
• 90031-14-4
• C₅H₈NO·CH₃O₄S
• .

• Iron(1+), (dibromomethyl)-
• 90160-74-0
• CHBr₂Fe
• .

• Isomerase, steroid Δ-
• 9031-36-1
• 232-867-8
• .