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

Gbagbọ Kemikali jẹ asiwaju China 2-Bromo-5-nitropyridine CAS 4487-59-6 olupese, olupese ati atajasita. Ni ifaramọ si ilepa ti didara awọn ọja, ki 2-Bromo-5-nitropyridine CAS 4487-59-6 ti ni itẹlọrun nipasẹ ọpọlọpọ awọn onibara. Shandong Gbagbo

A dara ni awọn anfani ti awọn ọja kemikali ni aaye. Awọn ọja wa ni okeere si Yuroopu, Amẹrika, Japan, South Korea, Guusu ila oorun Asia ati awọn orilẹ-ede ati agbegbe miiran. Pẹlu imọ-ẹrọ ati imọ-ẹrọ gẹgẹbi itọsọna, otitọ bi ipilẹ, didara bi igbesi aye, ati gbigbe ara si imọran ile-iṣẹ ti ĭdàsĭlẹ ati idagbasoke, a ni ireti ni otitọ lati fi idi awọn iyipada ati ifowosowopo lọpọlọpọ pẹlu awọn onibara ile ati ajeji lati ṣẹda aisiki!

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

2-Bromo-5-nitropyridine CAS 4487-59-6 Awọn ohun-ini Kemikali

Ojuami yo 139-141°C (tan.)
Oju ibi farabale 145-147°C/10mmHg(tan.)
Ìwúwo 1.8727(airotẹlẹ)
Atọka itọka 1.6200 (iṣiro)
Filasi ojuami 145-147 ° C / 10mm
Awọn ipo ipamọ Inertatmosphere, 2-8°C
Solubility Chloroform, HotMethanol
MọfolojiCrystalline Powder
Olusọdipúpọ acidity (pKa) -3.24± 0.10 (Asọtẹlẹ)
AwọLightyellowtolightbrown

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

Adalu 1.53 g (10.94 mmol) ti 2-hydroxy-5-nitropyridine, 4.1 g (12.71 mmol) ti tetrabutylammonium bromide ati 3.71 g (26.1 mmol) ti P2O5 ni 29 milimita ti benzene ti gbona ni reflux. Awọn adalu ti a tutu si yara otutu, oke Layer ti a niya nipa decantation, ati isalẹ Layer ti a triturated pẹlu benzene (3 x 6 milimita). Awọn ayokuro naa ni idapo pẹlu apakan Organic, ti a fo pẹlu ojutu ti o kun fun NaHCO3 ati NaCl, ati gbigbe lori MgSO4. Awọn epo ti a distilled ni pipa labẹ dinku titẹ, ati awọn iyokù ti a recrystallized lati Epo ilẹ ether. Ikore 1.7g (48%). Mp138-139°C, (bp40-70°C).