4-Hydroxyphenylacetic acid CAS 156-38-7
4-Hydroxyphenylacetic acid fari ko rawaya crystalline foda ne. Matsayin narkewa 149-151 ℃. Ana iya ƙaddamar da shi. Narke a cikin ether, ethanol, da ethyl acetate. 4-Hydroxyphenylacetic acid yana da nauyin kwayoyin dangi na 152.15. Matsayin narkewa 149-151 ℃. Ana iya ƙaddamar da shi.
Abu | Ƙayyadaddun bayanai |
Wurin tafasa | 234.6°C (m kiyasi) |
Yawan yawa | 1.2143 (ƙananan ƙididdiga) |
Wurin narkewa | 148-151 ° C (lit.) |
Refractivity | 1.4945 (ƙididdiga) |
Yanayin ajiya | Yanayin rashin aiki |
pKa | 4.50± 0.10 (An annabta) |
Tsarin halitta na 4-hydroxyphenylacetic acid. Ana amfani da tsaka-tsaki na kwayoyin halitta don samar da β-blockers atenolol da kayan aiki mai aiki na Pueraria lobata daidzein -4,7-dihydroxyflavone; 4-Hydroxyphenylacetic acid kuma ana iya amfani dashi azaman tsaka-tsakin maganin kashe kwari. Acylation dauki reagents ga phenolic mahadi da aminin mahadi.
Yawancin lokaci cushe a 25kg / drum, kuma kuma za a iya yi musamman kunshin.
4-Hydroxyphenylacetic acid CAS 156-38-7
4-Hydroxyphenylacetic acid CAS 156-38-7