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CAS编号中文名英文名分子式分子量熔点沸点
212837-49-52,3-二氟-4-n-丙酸苯硼酸2,3-difluoro-4-n-propoxybenzeneboronic acidC9H11BF2O3215.99
212838-70-5r-邻氯苯甘氨酸甲酯盐酸盐(R)-methyl 2-amino-2-(2-chlorophenyl)acetate hydrochlorideC9H11Cl2NO2236.10
21284-05-93,4-dimethyl-1,5-cyclooctadieneC10H16136.23
21284-11-77-beta,8-beta:12,13-diepoxy-, crotonate, (z)-trichothec-9-en-4-beta-oC19H24O5332.39
212842-64-3Cowaxanthone BC25H28O6424.48
212844-53-6purvalanol aC19H25ClN6O388.89
212844-54-7purvalanol bC20H25ClN6O3432.9
21285-46-1反-2,3-二溴-2-丁烯-1,4-二醇trans-2,3-dibromo-1,4-dihydroxy-2-buteneC4H6Br2O2245.90113.0 to 117.0 deg-C
21286-54-4(1S)-(+)-樟脑-10-磺酰氯(+)-Camphor-10-sulfonic acid chlorideC10H15ClO3S250.7463-68℃
2128657-45-23-溴-6,6-二氟-5,7-二氢吡唑并[5,1-b][1,3]噁嗪-2-甲酸乙酯Ethyl 3-bromo-6,6-difluoro-5,7-dihydropyrazolo[5,1-b][1,3]oxazine-2-carboxylateC9H9BrF2N2O3311.0802382.3±42.0 °C(Predicted)
21287-44-54-imidazolidinedione, 1-((3-(5-nitro-2-furanyl)-2-propenylidene)amino)- pota
2128707-85-58-氟二苯并[b,d]呋喃-4-醇8-fluorodibenzo[b,d]furan-4-olC12H7FO2202.18
2128707-95-77-苯基二苯并[b,d]呋喃-1-基三氟甲烷磺酸酯7-Phenyldibenzo[b,d]furan-1-yltrifluoromethanesulfonateC19H11F3O4S392.35
2128730-50-5ethyl 2-(amino(2-methoxyphenyl)methylene)-3-oxobutanoateC14H17NO4263.293
2128730-51-6ethyl (Z)-2-(amino(4-bromophenyl)methylene)-3-oxobutanoateC13H14BrNO3312.163
2128730-52-7ethyl (E)-2-(amino(2-bromophenyl)methylene)-3-oxobutanoateC13H14BrNO3312.163
2128730-54-9methyl (E)-4-(1-amino-2-(ethoxycarbonyl)-3-oxobut-1-en-1-yl)benzoateC15H17NO5291.304
2128730-59-4ethyl (E)-2-(amino(naphthalen-2-yl)methylene)-3-oxobutanoateC17H17NO3283.327
2128730-63-0ethyl 2-acetyl-3-amino-5-phenylpenta-2,4-dienoateC15H17NO3259.305
2128730-64-1ethyl (Z)-2-(amino(cyclopropyl)methylene)-3-oxobutanoateC10H15NO3197.234
2128735-20-4N,N-双(2-(2-(2-氨基乙氧基)乙氧基)乙基)-3-(2,5-二氧代-2,5-二氢-1H-吡咯-1-基)丙酰胺N,N-Bis(2-(2-(2-aminoethoxy)ethoxy)ethyl)-3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamideC19H34N4O7430.5
2128735-21-5BOC保护氨氧乙基-二硫键-丙醇Boc-aminooxy-ethyl-SS-propanolC9H19NO4S2269.38
2128735-22-6N-Mal-N-bis(PEG4-amine)C27H50N4O11606.71
2128735-23-7FMOC-NH-乙基-二硫键-丙酸活性酯Fmoc-NH-ethyl-SS-propionic NHS esterC24H24N2O6S2500.59
2128735-24-8Mal-NH-ethyl-SS-propionicacidC12H16N2O5S2332.40
2128735-25-9Fmoc-peg3-ch2co2-nhsC27H30N2O9526.54
2128735-26-0N-Mal-n-bis(peg2-nh-boc)C29H50N4O11630.73
2128735-27-1N-Mal-n-bis(peg4-nh-boc)C37H66N4O15806.940
2128735-28-2T-Boc-n-amido-peg5-msC16H33NO9S415.5
2128735-29-3N-Dbco-N-bis(peg2-nhs ester)C41H46N4O14818.800
2128740-77-0(5aR,10bS)-2-均三甲苯基-9-硝基-5a,10b-二氢-4H,6H-茚并[2,1-b][1,2,4]三唑并[4,3-d][1,4]恶嗪-2-鎓四氟硼酸盐(5AR,10bS)-2-mesityl-9-nitro-5a,10b-dihydro-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-2-ium tetrafluoroborateC21H21BF4N4O3464.2211  
2128748-50-3(t-bu)2pme-pd-g3C22H34NO3PPdS529.97160-173 °C (decomp)
21288-28-88-quinolinol, phosphate (salt)
21288-34-6(3-benzoylphenyl)-acetonitrileC15H11NO221.25
21288-60-8rhodomycinone
21288-61-91-naphthacenecarboxylic acid, 1,2,3,4,6,11-hexahydro-2-ethyl-2,4,5,7,10-pentahy
21288-85-7tetraamminedichloro-rhodium(1+ chloride
21288-86-8Tris(tetramethyIenedithiocarbamato)-iron(III)C15H24FeN3S6494.61
212890-47-64-(aminomethyl)-1-methyl-cyclohexanolC8H17NO143.226
212890-85-2((S)-4,4-dimethylpyrrolidin-2-yl)methanolC7H15NO129.1995
212890-86-3(2S)-2-(羟甲基)-4,4-二甲基吡咯烷-1-羧酸叔丁酯tert-butyl (2S)-2-(hydroxymethyl)-4,4-dimethylpyrrolidine-1-carboxylateC12H23NO3229.32
2129-20-6N,N'-Thiobis(dimethylamine)C4H12N2S120.22
2129-30-83-(二苯基膦基)苯甲酸3-(DIPHENYLPHOSPHINO)BENZOIC ACIDC19H15O2P306.30
2129-31-94-(diphenylphosphino)benzoic acidC19H15O2P306.29157-160 °C
2129-89-7diphenylmethyl-phosphine oxidC13H13OP216.22108-110℃180°C/0.1kPa
2129-95-52-methyl-2-noneneC10H20140.27
2129-99-9octadecanoic acid, compd. with 2-aminoethanol (1:1)
21290-09-5(+)-neoisopulegolC10H18O154.25
21291-00-9Propanoic acid,2-methyl-3-(trichlorogermyl)-C4H7Cl3GeO2266.10
21291-17-8alpha-dihydro-picrotoxini acetate
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