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Substance Name: Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)
RN: 117068-64-1


  • Biosynthesized in Alcaligenes eutrophus.

Molecular Formula

  • (C4-H8-O3.C4-H8-O3)x-

Molecular Weight

  • 208.2084
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Names and Synonyms

Name of Substance

  • Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)


  • 3HB-4-HB

Systematic Name

  • Butanoic acid, 3-hydroxy-, polymer with 4-hydroxybutanoic acid

Registry Numbers

CAS Registry Number

  • 117068-64-1

System Generated Number

  • 0117068641

Molecular Formulas

Molecular Formula

  • (C4-H8-O3.C4-H8-O3)x-

Molecular Formula Fragments

  • C4-H8-O3