CAS 21169-71-1 | ISOXAZOLE-5-CARBOXYLIC ACID
Molecular Formula: C4H3NO3
Molecular Weight: 113.07
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 21169-71-1 | ISOXAZOLE-5-CARBOXYLIC ACID
ITEMS | SPECIFICATION |
Melting point | 144-148 °C(lit.) |
InChIKey | MIIQJAUWHSUTIT-UHFFFAOYSA-N |
Storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
Color | Slightly yellow |
Refractive index | 1.4543 |
Form | Powder |
Water Solubility | Slightly soluble in water. |
Density | 1.5808 |
Boiling point | 211.74°C |
pka | 2.29 |
Sensitive | Moisture Sensitive |
CAS DataBase Reference | 21169-71-1(CAS DataBase Reference) |
Synthesis of CAS 21169-71-1 | ISOXAZOLE-5-CARBOXYLIC ACID
Conditions
With sulfuric acid; hydroxylamine hydrochloride at 40 - 100℃; for 12h; Cyclization; hydrolysis;
Reference
Martins, Marcos A. P.; Flores, Alex F. C.; Bastos, Giovani P.; Sinhorin, Adilson; Bonacorso, Helio G.; Zanatta, Nilo
[Tetrahedron Letters, 2000, vol. 41, # 3, p. 293 - 297]
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