CAS 199287-52-0|Benzaldehyde, 4, 5-difluoro-2-hydroxy- (9CI)
Cov mis mos molecular: C7H4F2O2
Molecular Luj: 158.1
EINECS: 642-799-4
Purity: 97% Min.
Pob: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Specification ntawm CAS 199287-52-0|Benzaldehyde, 4, 5-difluoro-2-hydroxy- (9CI)
Yam khoom | SPECIFICATION |
Melting point | 68-72 degree |
Cia temp. | Inert cua, 2-8 degree |
Qhov ntom | 1.464 g / cm3 |
Boiling point | 224.1 degree |
pka ua | 7.20 |
rhiab heev | Huab cua Sensitive |
Synthesis ntawmCAS 199287-52-0|Benzaldehyde, 4, 5-difluoro-2-hydroxy- (9CI)
Cov xwm txheej
Theem #1: 2-bromo-4, 5-difluorophenol Nrog n-butyllithium Hauv tetrahydrofuran; hexanes ntawm -78 degree ; rau 0.5h;
Theem #2: N, N-dimethyl-formamide Hauv tetrahydrofuran; hexanes ntawm 20 degree; rau 18h;.
Theem #3: Nrog dej Hauv tetrahydrofuran; hexas
Cim npe nrov: cas 199287-52-0|benzaldehyde, 4, 5-difluoro-2-hydroxy- (9ci), nqe, hais, luv nqi, hauv Tshuag, muag
