| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 12125-87-0 | | tricarbonyl(methyl benzoate)chromium | C11H8CrO5 | 272.17 | | |
| 121250-06-4 | | 8,11-trihydroxy-lyxo- hexopyranosyl)oxy)-8-(chloroacetyl)-1-methoxy- (8S-cis | | | | |
| 121250-47-3 | | octadecadienoic acid | | | | |
| 121250-95-1 | | (propionyl1,d-tyr(et)2,val4,abu6,arg8'9)- vasopressin | C53H82N16O11 | 1119.33 | | |
| 121251-67-0 | | spiro[bicyclo[4.1.0]heptane-2,5'-[1,3]dioxane], | | | | |
| 121251-68-1 | | 3 beta,6 alpha)-ph | | | | |
| 121254-39-5 | 2-甲基环戊[i]菲 | 2-methylcyclopenta[l]phenanthrene | | | | |
| 121255-03-6 | | 2-methyl-n,n'-bis(1-methylethyl)-5-pentanediamine | | | | |
| 121255-05-8 | | 2-propenoic acid, 2-methyl-, polymer with 1,3-butadiene, ethenylbenzene, 2-meth | | | | |
| 121255-47-8 | | 3,3-bis-(stearoyloxymethyl)-heptane | C45H88O4 | 693.18 | | |
| 12126-34-0 | | bis(i-propylcyclopentadienyl)iron | C16H22Fe | 270.19 | | |
| 12126-50-0 | 双(五甲基环戊烯)铁 | Bis(pentamethylcyclopentadienyl)iron(II) | C20H30Fe | 326.30 | 277℃ | |
| 12126-57-7 | | alkaloids, ergot | | | | |
| 12126-59-9 | | genisis | | | | |
| 12126-81-7 | | isopropyl-ferrocene | C13H16Fe | 228.11 | | |
| 1212602-23-7 | | (R)-n-boc-(2'-chlorophenyl)glycine | | | | |
| 121263-10-3 | 2,4-二溴-3-硝基吡啶 | 2,4-dibromo-3-nitropyridine | | | | |
| 121263-19-2 | | calphostin c | | | | |
| 121264-04-8 | | ici 204448 | C17H27NO2.HCl | 313.86 | | |
| 121268-17-5 | 阿仑磷酸钠 | (4-amino-1-hydroxybutylidene)bis-phosphonic aci monosodium salt | | | | |
| 121269-45-2 | | (5S)-3,4,5,6-tetrahydro- 5-phenyl-2(h)-1,4-oxazin-2-one | C10H11NO2 | 177.20 | | |
| 121269-85-0 | | pro-thr-pro-ser amide | C17H29N5O6 | 399.44 | | |
| 12127-42-3 | | rhodium carbide (rhc) | | | | |
| 121271-14-5 | | 9-octadecenoic acid (z)-, reaction products with epoxidized bu oleate, isooctyl | | | | |
| 121271-15-6 | | oxirane, ethyl-, homopolymer, monocarbonochloridate, tetrapropylenephenyl ether | | | | |
| 121273-39-0 | | fce 24362 | | | | |
| 1212734-83-2 | (r)-2-(三氟甲基)哌啶 | (r)-2-(trifluoromethyl)piperidine | | | | |
| 121277-05-2 | | 3-(1h-imidazol-1-ylacetyl)-2-((4-methoxyphenoxy)methyl)-thiazolidin | | | | |
| 121277-18-7 | | ethanethioic acid, s-(2-(2-((4-methoxyphenoxy)methyl)-3-thiazolidinyl)-2-oxoeth | | | | |
| 121277-96-1 | | terikalant | | | | |
| 121278-33-9 | | 4-(3,4-dimethoxyphenyl)piperidine hcl | | | | |
| 121278-66-8 | | 4-[(3,4-dimethoxyphenyl)methyl]-piperidine hcl | | | | |
| 12128-24-4 | | cyclopentadienyltungsten tricarbonyl chloride | | | | |
| 12128-26-6 | | cyclopentadienyltungsten tricarbonyl hydride | | | | |
| 12128-51-7 | | Cobalt,(η5-2,4-cyclopentadien-1-yl)[1,1,1,4,4,4-hexafluoro-2-butene-2,3-dithiolato(2-)-S,S']- | C9H5CoF6S2 | 350.19 | | |
| 12128-79-9 | | Manganese,tricarbonyl((trifluoroacetyl)-Π-cyclopentadienyl)- | C10H4F3MnO4 | 300.07 | | |
| 12128-81-3 | | tricarbonyl(1,3,5-cycloheptatriene)tungsten | | | 102℃ | |
| 1212802-03-3 | | (3S)-4-methoxy-2,3-dihydrobenzo[b]furan-3-ylamine | | | | |
| 121281-41-2 | | technetium (99m tc) bicisate | | | | |
| 121282-17-5 | | 4-dinitrophenyl)-pro-leu-gly-leu-*trp- ala-d-n-( | C45H64N14O11 | 977.09 | | |
| 121282-70-0 | 反式-2-(boc-氨基)环己醇 | trans-2-(boc-amino)cyclohexanol | | | | |
| 121282-84-6 | | 5-b)indol-4-one, 3,5-dihydro-7,8-dimethoxy-4h-pyridazino( hydrazone | | | | |
| 121282-86-8 | | propanal 2-methyl-, (7,8-dimethoxy-5h-pyridazino(4,5-b)indol-4-yl)hydrazone | | | | |
| 1212831-53-2 | | (2R)-2-amino-2-(2-chlorophenyl)ethan-1-ol | | | | |
| 1212831-96-3 | | (R)-cyclopropyl(4-methoxyphenyl)methanamine hydrochloride | | | | |
| 1212834-96-2 | | (S)-beta-3-m-tolylalaninol | | | | |
| 121284-21-7 | | lys-arg-thr-leu-arg-arg*trifluoroacetate | C34H68N16O8 | 829.01 | | |
| 121284-42-2 | | 3-acetamido-5-iodoproflavine | | | | |
| 1212853-72-9 | | (S)-1-(2-methoxypyridin-4-yl)ethanamine | | | | |
| 1212864-47-5 | | boc-2,4-dinitro-d-phenylalanine | | | | |
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