2-Bromo-5-nitropyridine CAS 4487-59-6

Believe Chemical shine jagorar China 2-Bromo-5-nitropyridine CAS 4487-59-6 masana'anta, mai kaya da fitarwa. Mance da bin ingantattun samfuran samfuran, ta yadda abokan cinikinmu da yawa sun gamsu da 2-Bromo-5-nitropyridine CAS 4487-59-6. Shandong Amince

Muna da kyau a fa'idodin samfuran sinadarai a fagen. Ana fitar da samfuranmu zuwa Turai, Amurka, Japan, Koriya ta Kudu, kudu maso gabashin Asiya da sauran ƙasashe da yankuna. Tare da kimiyya da fasaha a matsayin jagora, gaskiya a matsayin tushe, inganci a matsayin rayuwa, da kuma dogara ga ra'ayin kasuwanci na ƙididdigewa da ci gaba, muna fatan gaske don kafa musanya da haɗin kai tare da abokan ciniki na gida da na waje don samar da wadata!

2-Bromo-5-nitropyridine CAS 4487-59-6 Bayanin Sinadarai

2-Bromo-5-nitropyridine CAS 4487-59-6 Abubuwan Sinadarai

Matsayin narkewa 139-141°C (lit.)
Wurin tafasa 145-147°C/10mmHg(lit.)
Maɗaukaki 1.8727 (ƙididdigar ƙididdiga)
Indexididdigar haɓakawa 1.6200 (ƙididdiga)
Wurin walƙiya 145-147°C/10mm
Yanayin ajiya Inertatmosphere, 2-8°C
Solubility Chloroform, HotMethanol
Ilimin Halitta Crystalline Foda
Matsakaicin acidity (pKa) -3.24± 0.10 (An annabta)
LauniLightyellowtolight Brown

2-Bromo-5-nitropyridine CAS 4487-59-6 Aikace-aikacen

Cakuda 1.53 g (10.94 mmol) na 2-hydroxy-5-nitropyridine, 4.1 g (12.71 mmol) na tetrabutylammonium bromide da 3.71 g (26.1 mmol) na P2O5 a cikin 29 ml na benzene aka mai tsanani a reflux. An sanyaya cakuda zuwa zafin jiki, an raba saman saman ta hanyar yankewa, kuma ƙananan Layer an triturated da benzene (3 x 6 ml). An haɗa abubuwan da aka cire tare da tsarin kwayoyin halitta, an wanke su tare da cikakken bayani na NaHCO3 da NaCl, kuma an bushe a kan MgSO4. An distilled da sauran ƙarfi a ƙarƙashin rage matsa lamba, kuma ragowar an sake sake shi daga ether mai. Samar da 1.7g (48%). Mp138-139°C, (bp40-70°C).