实单，价格可议。纯度要求：95%
基本信息：
Name:3-(1H-pyrazol-4-yl)propiolic acid
CAS:1342026-69-0
Chemical Formula: C6H4N2O2
Molecular Weight: 136.1100
m/z: 136.0273 (100.0%), 137.0306 (6.5%)
Elemental Analysis: C, 52.95; H, 2.96; N, 20.58; O, 23.51