CAS 124004-31-5|1H-Pyrazole -3-carboxylicacid, 5-amino-
Cov mis mos molecular: C4H5N3O2
Molecular Luj: 127.1
Purity: 97% Min.
Pob: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Specification ntawm CAS 124004-31-5|1H-Pyrazole -3-carboxylicacid, 5-amino-
Yam khoom | SPECIFICATION |
pka ua | 16.08 |
Melting point | 245-246 degree |
ceev | 1.677 g / cm3 |
cia temp. | nyob rau hauv inert gas (nitrogen los yog Argon) ntawm 2-8 degree |
Boiling point | 561.2 degree |
Synthesis ntawmCAS 124004-31-5|1H-Pyrazole -3-carboxylicacid, 5-amino-
Cov xwm txheej
Theem #1: 3-nitro-1H-pyrazole-5-carboxylic acid Nrog 10 wt feem pua Pd(OH)2 ntawm carbon; hydrogen hauv methanol; ethyl acetate ntawm 20 degree; rau 20h; Inert cua;
Theem #2: Nrog sodium hydroxide Hauv methanol; ethyl acetate ntawm 2 0 degree ; rau 0.5h;
Cim npe nrov: cas 124004-31-5|1h-pyrazole-3-carboxylicacid,5-amino-, nqe, hais, luv nqi, hauv Tshuag, muag
