Benzene, 1-(chloromethyl)-4-fluoro- CAS 352-11-4 Cov neeg tsim khoom

Peb lub Hoobkas muab 2-bromofluorobenzene cas 1072-85-1, N, N-dimethylformamide dimethyl acetal cas 4637-24-5, 5-heptylresorcinol cas 500-67-4. Peb cov khoom yog muag hauv tsev thiab txawv teb chaws. Peb tau txais kev qhuas los ntawm cov neeg siv khoom zoo, tus nqi tsim nyog thiab kev pabcuam zoo meej.

Cov khoom kub

  • 2,3-dihydroxyterephthalic acid CAS 19829-72-2

    2,3-dihydroxyterephthalic acid CAS 19829-72-2

    Raws li kev tsim khoom, peb xav muab koj cov khoom zoo 2,3-dihydroxyterephthalic acid CAS 19829-72-2. Thiab peb yuav muab cov kev pabcuam zoo tshaj plaws tom qab muag thiab xa khoom raws sijhawm.
  • Tom ntej: Methyl 3-amino-2-thiophenecarboxylate CAS 22288-78-4

    Tom ntej: Methyl 3-amino-2-thiophenecarboxylate CAS 22288-78-4

    Peb yog cov ua Methyl 3-amino-2-thiophenecarboxylate CAS 22288-78-4 chaw tsim tshuaj paus nyob rau hauv Suav teb.Methyl 3-amino-2-thiophenecarboxylate CAS 22288-78-4 muaj Tshuag, ceev shipping.COA, MSDS, TDS, thiab lwm yam. Methyl 3-amino-2-thiophenecarboxylate CAS 22288-78-4 tuaj yeem muab tau.
  • (2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)aMino)-2-Methylpentanoic acid CAS 1012341-50-2

    (2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)aMino)-2-Methylpentanoic acid CAS 1012341-50-2

    Raws li kev tsim khoom, peb xav muab koj cov khoom zoo (2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)aMino)-2-Methylpentanoic CAS 1012341-50-2. Thiab peb yuav muab cov kev pabcuam zoo tshaj plaws tom qab muag thiab xa khoom raws sijhawm.
  • 3-Hydroxy-4-nitrobenzoic acid CAS 619-14-7

    3-Hydroxy-4-nitrobenzoic acid CAS 619-14-7

    Raws li kev tsim khoom, peb xav muab koj cov khoom zoo 3-Hydroxy-4-nitrobenzoic acid CAS 619-14-7. Thiab peb yuav muab cov kev pabcuam zoo tshaj plaws tom qab muag thiab xa khoom raws sijhawm.
  • Tom ntej: Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide CAS 75980-60-8

    Tom ntej: Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide CAS 75980-60-8

    Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide CAS 75980-60-8 Peb yog cov chaw tsim khoom ntawm Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide CAS 75980-60-8 hauv Suav teb.Diphenyl(2,4) ,6-trimethylbenzoyl)phosphine oxide CAS 75980-60-8 muaj nyob rau hauv Tshuag thiab tuaj yeem xa tuaj sai.COA, MSDS thiab TDS ntawm Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide CAS 75980-60-8.
  • 2-Amino-5-nitropyridine CAS 4214-76-0

    2-Amino-5-nitropyridine CAS 4214-76-0

    2-Amino-5-nitropyridine CAS 4214-76-0 yog muab los ntawm nitration ntawm 2-aminopyridine. Ntawm qhov kub ntawm 50 ° C, 2-aminopyridine tau ntxiv rau cov concentrated sulfuric acid, thiab tom qab ntawd fuming nitric acid ntxiv dropwise, thiab qhov kub tsis tshaj 50 ° C. Incubate ntawm 45 ° C rau 2h, thiab do nyob rau hauv chav tsev kub rau 4h. Cov tshuaj tiv thaiv tau muab nchuav rau hauv cov dej khov, thiab cov pH tau hloov mus rau 6 los ntawm kev ntxiv ammonia dej hauv qab 5 ° C, thiab cov muaju tau los nag. Lim thiab qhuav. Recrystallization nrog dej kom tau daj ntseg platelets, tawm los 75%

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