4-Hydroxyphenylacetic acid CAS 156-38-7
Tha searbhag 4-hydroxyphenylacetic na phùdar criostalach geal no beagan buidhe. Puing leaghaidh 149-151 ℃. Faodar a sublimated. Fuasgladh ann an ether, ethanol, agus ethyl acetate. Tha cuideam moileciuil coimeasach aig 4-Hydroxyphenylacetic acid de 152.15. Puing leaghaidh 149-151 ℃. Faodar a sublimated.
| Nì | Sònrachadh |
| puing ghoil | 234.6°C (tuairmse garbh) |
| Dùmhlachd | 1.2143 (tuairmse garbh) |
| Puing leaghaidh | 148-151 ° C (lit.) |
| Refraction | 1.4945 (tuairmse) |
| Suidheachadh stòraidh | Àile neo-sheasmhach |
| pKa | 4.50 ± 0.10 (Air a ro-innse) |
Synthesis organach de dh ’aigéad 4-hydroxyphenylacetic. Thathas a ’cleachdadh eadar-mheadhanan synthesis organach airson a bhith a’ dèanamh β - atenolol neach-bacadh gabhadair agus an tàthchuid gnìomhach de Pueraria lobata daidzein -4,7-dihydroxyflavone; Faodar searbhag 4-Hydroxyphenylacetic a chleachdadh cuideachd mar eadar-mheadhanach puinnsean-bhiastagan. Ath-bheachdan ath-bhualadh acylation airson todhar phenolic agus todhar amine.
Mar as trice air a phacadh ann an 25kg / druma, agus faodar cuideachd pasgan gnàthaichte a dhèanamh.
4-Hydroxyphenylacetic acid CAS 156-38-7
4-Hydroxyphenylacetic acid CAS 156-38-7
