P(3HB-co-4HB)
Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)
4HB mol%: 15±1
(C4H6O2)m(C4H6>O2)nH2O
淡黄色颗粒
＞98%
30万Da＜Mw＜50万Da
1.23
PHA
EN