CAS 124004-31-5 | 1H-Pyrazole-3-carboxylicacid,5-amino-
Molecular Formula: C4H5N3O2
Molecular Weight: 127.1
Purity: 97% Min.
Package: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Product Introduction
Specification of CAS 124004-31-5 | 1H-Pyrazole-3-carboxylicacid,5-amino-
ITEMS | SPECIFICATION |
pka | 16.08 |
Melting point | 245-246 °C |
density | 1.677 g/cm3 |
storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
Boiling point | 561.2 °C |
Synthesis of CAS 124004-31-5 | 1H-Pyrazole-3-carboxylicacid,5-amino-
Conditions
Stage #1: 3-nitro-1H-pyrazole-5-carboxylic acid With 10 wt% Pd(OH)2 on carbon; hydrogen In methanol; ethyl acetate at 20℃; for 20h; Inert atmosphere;
Stage #2: With sodium hydroxide In methanol; ethyl acetate at 20℃; for 0.5h;
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