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Merck

915092

Sigma-Aldrich

Poly(3-hydroxybutyric acid)

natural origin, average Mn ~500,000

Sinónimos:

P3HB, PHA, PHB, Polyhydroxybutyrate

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About This Item

Fórmula lineal:
(C4H6O2)nH2O
Número de CAS:
Número MDL:
Código UNSPSC:
12352106
NACRES:
NA.25
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Nivel de calidad

Formulario

powder

mol peso

average Mn ~500,000

color

white to off-white

temp. de almacenamiento

2-8°C

Aplicación

Poly(3-hydroxybutyric acid) (PHB) is a common polyhydroxyalkanoate (PHA), it has been widely used for food packaging, medical implants, biodegradable sutures and drug delivery systems due to its biocompatible and biodegradable properties. PHB has been investigated as drug delivery micro- and nano-carriers.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Certificados de análisis (COA)

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Senthilkumar Pachiyappan et al.
IET nanobiotechnology, 13(4), 416-427 (2019-06-07)
In this study, polyhydroxybutyrate (PHB) nanoparticles were synthesised following nanoprecipitation method having different solvents and surfactant (Tween 80) concentrations. In this study, PHB nanoparticles were encapsulated with curcumin and subjected for sustained curcumin delivery. Both the curcumin loaded and unloaded
Sumeet Kapoor et al.
International journal of pharmaceutics, 511(2), 876-889 (2016-08-06)
Faster biodegradation, immunogenicity and lack of cell penetrative capabilities are hurdles in development of peptidyl drugs for cancer therapy. Polymeric carriers can be used to overcome these problems. The present study is focused on the use of polyhydroxybutyrate as a
K Juni et al.
Critical reviews in therapeutic drug carrier systems, 3(3), 209-232 (1987-01-01)
Poly(hydroxy acids) so far have been examined for use in drug delivery in limited number, while the advantageous use of the polymers has been recognized due to their biodegradability and biocompatibility. Homo- and copolymers of lactic acid and glycolic acid

Preguntas

1–2 de 2 Preguntas  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 respuesta
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 respuesta
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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