| 1 | 4255-07-6 | Zinc oxalate dihydrate | C2H4O6Zn | 189.44 | 100°C | |
| 2 | 4255-22-5 | PSUKSRYRAXNSIY-UHFFFAOYSA-N | C22H30O2 | 326.4724 | | |
| 3 | 4255-23-6 | Alfetamine | | | | |
| 4 | 4255-24-7 | Ethylamine, 1-allyl-2-phenyl-, hydrochloride | C11H16ClN | 197.70444 | | |
| 5 | 4255-35-0 | 2-Octanol, 1-amino- | C8H19NO | 145.24256 | | |
| 6 | 4255-62-3 | 4,4-Dimethylcyclohexanone | C8H14O | 126.2 | 41-45 °C | Insoluble in water. |
| 7 | 4255-80-5 | (6α,9β,10α)-6-Methylpregn-4-ene-3,20-dione | C22H32O2 | 328.5 | | |
| 8 | 4255-94-1 | 2,5-diethoxy-4-(morpholin-4-yl)benzenediazonium hexafluorophosphate | C14H20F6N3O3P | 423.2910802 | | |
| 9 | 42550-29-8 | 2,2-Dimethyl-θ-oxo-1-aziridinenonanoic acid methyl ester | C14H25NO3 | 255.35 | | |
| 10 | 42550-30-1 | 4,5-Dihydro-5,5-dimethyl-2-oxazoleoctanoic acid methyl ester | C14H25NO3 | 255.35 | | |
| 11 | 42550-36-7 | Dodecanoic acid, 5-hydroxy-, (R)- (9CI) | C12H24O3 | 216.32 | | |
| 12 | 42550-38-9 | (R)-5-[[(4-Methylphenyl)sulfonyl]oxy]dodecanoic acid methyl ester | C20H32O5S | 384.53 | | |
| 13 | 42550-65-2 | 1H-Pyrrole-2,5-dione, 3,4-dichloro-1-dodecyl- | C16H25Cl2NO2 | 334.28 | | |
| 14 | 42550-72-1 | METHYL 2-BENZYL-2-CYANO-3-PHENYLPROPANOATE | C18H17NO2 | 279.33 | 57-60°C | |
| 15 | 42551-55-3 | (2S,3R)-3-aminobutan-2-ol | C4H11NO | 89.14 | 19°C | |
| 16 | 42551-56-4 | 2-Propen-1-amine, N-[(2-methoxyphenyl)methylene]- | C11H13NO | 175.23 | | |
| 17 | 42553-02-6 | sodium tetrahydronaphthalene-1-sulphonate | C10H11NaO3S | 234.24731 | | |
| 18 | 42553-22-0 | 1,4-Benzenedicarboxylicacid,polymerwithhexahydro-2H-azepin-2-oneand4,4'-methylenebis[cyclohexanamine] | C27H43N3O5 | 489.66 | | |
| 19 | 42553-65-1 | saffron (natural) | C44H64O24 | 976.97 | 186° (effervescence) | |
| 20 | 42556-50-3 | (18α,19α,20β)-3β-Hydroxyursan-16-one | C30H50O2 | 442.72 | | |
| 21 | 42556-67-2 | Fumaric acid,polymer with propyleneglycol,and 3-oxa-1,5-pentanediol | C11H22O9 | 298.29 | | |
| 22 | 42556-95-6 | Oxirane,polymerwiththiirane | C4H8OS | 104.17 | | |
| 23 | 42557-10-8 | BAYSILONE OIL M30000 | (C2H6OSi)nC6H18OSi2 | | -42.4 °C | |
| 24 | 42557-11-9 | ω-(trimethylsilyl)oxy- | | | | |
| 25 | 42557-89-1 | Cyclohexanone, 2-[(butylthio)methyl]- | C11H20OS | 200.34 | | |
| 26 | 42558-01-0 | 2-(1-hydroxypentyl)cyclopentan-1-one | C10H18O2 | 170.25 | | |
| 27 | 42558-50-9 | Methyl (S)-3-Hydroxypentanoate | C6H12O3 | 132.16 | | |
| 28 | 42558-54-3 | Isobutyrylacetic acid methyl ester | C7H12O3 | 144.17 | -75°C | 43.6g/L at 20℃ |
| 29 | 42558-60-1 | diaminomethylidene-[(4-oxo-3H-phthalazin-1-yl)methyl]azanium sulfate | C10H13N5O5S | 315.3 | | |
| 30 | 42558-61-2 | Guanidine, [(3,4-dihydro-3-methyl-4-oxo-1-phthalazinyl)methyl]-, sulfate (2:1) (9CI) | C11H15N5O5S | 329.33 | | |
| 31 | 42558-63-4 | Guanidine, [[3,4-dihydro-4-oxo-3-[2-(2-pyridinyl)ethyl]-1-phthalazinyl]methyl]-, sulfate (2:1) (9CI) | C17H20N6O5S | 420.44 | | |
| 32 | 42558-73-6 | lead propionate | C3H6O2.xPb | | | |
| 33 | 42558-77-0 | 3-[2-[bis(2-chloroethyl)amino]phenoxy]propanoic acid | C13H17Cl2NO3 | 306.18 | | |
| 34 | 42558-83-8 | NSC69185 | C15H26N8O4S | 414.48314 | | |
| 35 | 42558-88-3 | Guanosine, 6-thio-, 2',3',5'-tripropanoate (9CI) | C19H25N5O7S | 467.5 | | |
| 36 | 42558-93-0 | NSC 153174 | C10H16ClN3O4 | 277.7 | | |
| 37 | 42558-94-1 | 4β-[3-(2-Chloroethyl)-3-nitrosoureido]-1α-cyclohexanecarboxylic acid | C10H16ClN3O4 | 277.7 | | |
| 38 | 42559-25-1 | 1,1',2,2',6,6'-Hexamethyl-4,4'-bipyridiniumbis(tetrafluoroborate) | | | | |