2-Bromo-5-chloropyridine CAS 40473-01-6

Khoom Piav Qhia:

Khoom Lub Npe: 2-Bromo-5-chloropyridine CAS NO: 40473-01-6

Lub ntsiab lus:

5-chloro-2-bromopyridine;

2-BroMoo-5-chloropyridine;

Tshuaj& Lub Cev Muaj Zog:

Tshwm sim: Lub teeb xim av kom daj crystalline hmoov

Kev Ntsuas: ≥98.0%

Ceev: 1.736 g/cm3

Kub Point: 212 ℃ ntawm 760 mmHg

Melting Point: 65-69 ℃

Flash Point: 82 ℃

Refractive Index: 1.581

Dej Solubility: Soluble me ntsis hauv dej

Cov Ntaub Ntawv Kev Nyab Xeeb:

Cov Lus Hais Txog Kev Nyab Xeeb: S22-S26-S36/37/39

HS Code: 2933399090

RIDADR: Txias, qhuav, kaw nruj

Cov nqe lus pheej hmoo: R20/22; R36/37/38

Cov lej phom sij: Xn, Xi

2-bromo-5-chloropyridine yog cov organic nruab nrab, tsis muaj xim tsis muaj xim, uas tuaj yeem npaj tau los ntawm 2-amino-5-chloropyridine los ntawm diazotization cov tshuaj tiv thaiv lossis 2, 5-dichloropyridine los ntawm hydrogen bromide hloov chaw. Bromine (18.0 mL, 353.7mmol) tau maj mam ntxiv rau kev daws ntawm 2-amino-5-chloropyridine (15.0g, 116.7mmol) hauv 47% aq. hBr (75.0 mL) ntawm -10 ℃. Kev daws cov kua dej ntawm NaNO2 (28.1g, 4chemicalbook073.3mmol) tau maj mam ntxiv rau nws. Qhov sib tov tau sib tov ntawm -10 txog -5 ° C rau 1h thiab tom qab ntawd 5 ° C rau 1h. Qhov sib tov tau nruab nrab nrog 5MNaOH cov kua dej thaum ntsuas kub tau tswj qis dua 25 ℃. Cov nag nag tau lim tawm thiab rov ua dua tshiab nrog pentane kom tau 2-bromo-5-chloropyridine.

Yog tias koj txaus siab rau peb cov khoom lossis muaj lus nug, thov koj xav tiv tauj peb!

Cov khoom lag luam nyob rau hauv patent tau muab rau R& D lub hom phiaj nkaus xwb. Txawm li cas los xij, lub luag haujlwm zaum kawg tshwj xeeb tshaj yog nrog tus neeg yuav khoom.

Cim npe nrov: 2-bromo-5-chloropyridine cas 40473-01-6, tuam ntxhab, cov chaw muag khoom, lub Hoobkas, yuav, hauv Tshuag

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