4-Hydroxyphenylacetic acid CAS 156-38-7
ʻO 4-Hydroxyphenylacetic acid he pauka crystalline keʻokeʻo a melemele iki paha. Ka helu hehee 149-151 ℃. Hiki ke sublimated. E hoʻoheheʻe i ka etera, ethanol, a me ka ethyl acetate. 4-Hydroxyphenylacetic acid he 152.15 ka nui o ke kaumaha molekala. Ka helu hehee 149-151 ℃. Hiki ke sublimated.
| 'ikamu | Hōʻike |
| Lae paila | 234.6°C (manaʻo koʻikoʻi) |
| ʻO ka mānoanoa | 1.2143 (manaʻo koʻikoʻi) |
| Lae hehee | 148-151 °C(māmā) |
| Hoʻopaʻapaʻa | 1.4945 (manaʻo) |
| Nā kūlana mālama | lewa ʻaʻole |
| pKa | 4.50±0.10(Wanamua) |
ʻO ka hui ʻana o ka 4-hydroxyphenylacetic acid. Hoʻohana ʻia nā intermediates synthesis organik no ka hana ʻana o ka β - receptor blocker atenolol a me ka mea hana o Pueraria lobata daidzein -4,7-dihydroxyflavone; Hiki ke hoʻohana ʻia ka 4-Hydroxyphenylacetic acid ma ke ʻano he pesticide intermediate. Acylation reaction reagents no nā pūhui phenolic a me nā pūhui amine.
Hoʻopili pinepine ʻia i ka 25kg / pahu, a hiki ke hana ʻia i ka pōʻai maʻamau.
4-Hydroxyphenylacetic acid CAS 156-38-7
4-Hydroxyphenylacetic acid CAS 156-38-7
