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3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7) Umfanekiso obonakalayo
  • 3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7) 1

3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7)

Ipropati yeMichiza:

Ifomula yeemolekyuli I-C6H7Cl3N2
IMisa yeMolar 213.49
Indawo yokunyibilika 230°C (dec.)(lit.)
Indawo yeBoling 288.3 ° C kwi-760 mmHg
Indawo yokuflasha 128.2°C
Uxinzelelo loMphunga 0.00236mmHg ku-25°C
Imbonakalo Umgubo omhlophe
I-BRN 3703934
Imeko yoGcino phantsi kwegesi engasebenziyo (nitrogen okanye iArgon) ku-2–8 °C
MDL MFCD00012937

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Izazisi ze-UN 2811
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3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7) Ulwazi

isicelo I-3, i-4-dichlorophenylhydrazine hydrochloride yi-pharmaceutical intermediate engasetyenziselwa ukulungiselela i-biphenylpyridine.
indlela yokulungiselela i-compound 3,4-dichloroaniline (38.88g,0.2399mol) ichithwa kwi-dichloroethane (30ml), emva koko i-12mol / L igxininise i-hydrochloric acid (70ml, 0.84mol) yongezwa, i-nitrite ye-sodium (18.06g, 0.261, i-themol) yongezwa isisombululo sokuphendula sishukunyiswa kwi-5 ℃ nge-30min, kunye nolwelo olucacisiweyo luhluzwe ngaphandle, lwehla kwi-140ml yesisombululo se-sodium sulfite equlethe (90.71g,0.7197mol), iphendule kwi-80 ℃ malunga neeyure ze-3, isabela ukuvelisa i-3,4-dichlorophenylhydrazine, yongeza malunga (60ml, 0.72mol) i-hydrochloric acid egxininiswe ngeyure eli-1, igxobhoze ubusuku bonke kwindawo yokushisa, ihluzo ukufumana I-3,4-dichlorophenylhydrazine hydrochloride emhlophe eqinileyo 46.1g, isivuno: 90%.
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